Infiniti Q45#FY33

{{Infobox automobile

| image = 1994 Infiniti Q45a in Black Obsidian, Front Left, 04-26-2023.jpg

| caption = 1994-1996 facelifted version

| name = First generation

| model_code = G50

| aka = Nissan Infiniti Q45 (Japan and Australia)Tony Davis, The New Car Buyers Guide No 6, Australia's Premier Passenger Car Guide, 1994, page 174

| model_years = 1990–1996

| production = August 1989 – June 1996

| related = Nissan President

| engine = 4.5L VH45DE V8

| wheelbase = 1990–91: {{convert|2875|mm|in|1|abbr=on}}
1992–96: {{convert|2880|mm|in|1|abbr=on}}

| length = {{convert|5090|mm|in|1|abbr=on}}

| width = {{convert|1825|mm|in|1|abbr=on}}

| height = 1990–1993: {{convert|1430|mm|in|1|abbr=on}}
1994–1996: {{convert|1425|mm|in|1|abbr=on}}

| weight = {{convert|1780|-|1840|kg|lb|0|abbr=on}}

| transmission = 4–speed automatic

| designer = Shunji Yamanaka (1987){{cite web|last1=Hsu|first1=Ben|title=25 YEAR CLUB: The Infiniti Q45 is officially a Japanese Nostalgic Car|url=http://japanesenostalgiccar.com/the-infiniti-q45-is-officially-a-japanese-nostalgic-car/|date=13 November 2014}}{{cite web|title=山中俊治 - 日本デザインコミッティー|url=http://designcommittee.jp/member/yamanaka_shunji.html}}

}}

The first generation Q45 came to market in 1989 as a 1990 model with a high-output 4.5 L VH45DE DOHC 32V V8 engine rated at {{Convert|278|hp|kW|0|abbr=on}} and {{convert|292|lbft|Nm|0|abbr=on}} in North American trim. All Q45s included a viscous limited-slip differential and a multi-link suspension at the front and rear.{{cite magazine |url=https://books.google.com/books?id=dwEAAAAAMBAJ&pg=PA78 |title=East vs. West |first=Don |last=Sherman |date=December 1989 |magazine=Popular Science |pages=78–83;102–104 |access-date=12 March 2024}} Nissan chose to position it as a luxurious performance sedan, installing technology that would achieve this purpose, and used the letter "Q" from the western tradition of the Q-car meant to imply that its unassuming appearance hid its performance capabilities. At launch, the {{USD|38000|1989|round=-3}} sedan had a single option, the Touring Package, which added Nissan's Super HICAS four-wheel steering system, a decklid spoiler, and alloy wheels.{{cite book |chapter-url=https://archive.org/details/1990cars0000unse/page/202/mode/2up |url=https://archive.org/details/1990cars0000unse/ |title=Consumer Guide: 1990 Cars |chapter=Infiniti Q45 |pages=202–205 |publisher=Signet |isbn=978-0451-164155 |date=1989 |access-date=12 March 2024 |url-access=registration}}

In Japan, it was marketed as the Nissan Infiniti Q45, and was exclusive to Nissan Prince Store locations, as its platform twin the President was exclusive to Nissan Store locations. The G50 chassis continued in production in Japan until 2002 as the President in both regular and extended wheelbase versions. The Japanese version had many options that never appeared on the North American G50.

The contemporary upstart luxury marque Lexus (Toyota) had managed to challenge the established dominance of European full-size luxury cars with the LS 400, so the Q45 seemed poised for similar success with comparable specifications and price to the LS 400 while featuring more emphasis upon handling. However, the Q45 did not achieve similar sales volumes, which was attributed to the car's unconventional styling, particularly the grille and lack of interior woodgrain or chrome trim. There was also an unusual advertising campaign which did not include actual photos or information about the car.{{cite web|title=Infiniti water commercial|url=https://www.youtube.com/watch?v=5rIUAuW6vLk|website=Youtube| date=16 July 2013 |access-date=2 February 2017}}{{cite web|title=Infiniti Launch Commercial|url=https://www.youtube.com/watch?v=hm8gXPQmHpw|website=Youtube| date=25 April 2014 |access-date=2 February 2017}}{{cite news |url=https://www.caranddriver.com/news/a18741988/randy-described-eterniti-new-british-luxury-hemera-to-debut-at-frankfurt/ |title=Randy Described Eterniti: New British Luxury Hemera to Debut at Frankfurt |first=Davey G. |last=Johnson |date=August 16, 2011 |work=Car and Driver |access-date=12 March 2024 |quote=The memory, however, of the loony launch of the Q45 back in 1990, however, seems to have transited the Atlantic and manifested itself in the hyper-cheese storm-brewing Flash video that new luxury automaker Eterniti has posted on its website. The thing about the O.G. Q45 ads—which also served to introduce Nissan's then-new luxury brand to the American public—is that they didn't feature the car.}} By 1995, the price had risen to {{USD|54000|1995|round=-3}}, slowing sales.{{cite magazine |url=https://books.google.com/books?id=7wYEAAAAMBAJ&pg=PA123 |title=Car-Buying Service Stalls |first=Ed |last=Henry |date=November 1995 |magazine=Kiplinger's Personal Finance |access-date=12 March 2024 |pages=123–125}}

In 1993 the Infiniti brand was launched in Australia with the sole model on offer being the Q45. With a price of A$140,000, the Q45 sold poorly and the brand was subsequently withdrawn from the market in 1996.{{cite web|title=Next Car's prediction of Infiniti's local release confirmed|url=http://www.nextcar.com.au/n.infiniti.110322.au.html|publisher=Next Car|access-date=14 March 2012|date=22 March 2011}}{{cite web|last=Fallah|first=Alborz|title=Nissan to bring the Infiniti Brand to Australia?|url=http://www.caradvice.com.au/7/nissan-to-bring-the-infiniti-brand-to-australia/|publisher=CarAdvice|access-date=14 March 2012|date=18 May 2006}}

According to the design team, the Q45 was meant to "express the Japanese concept of luxury" by incorporating traditional Japanese craftsmanship; as initially released, there was no front grille and no wood paneling on the dashboard.{{cite magazine |url=https://www.caranddriver.com/reviews/a15141987/infiniti-q-series-archived-first-drive-review/ |title=Infiniti Q45: Another reason to be rich |first=Patrick |last=Bedard |date=January 1989 |magazine=Car and Driver |access-date=12 March 2024}} Nissan received assistance from Poltrona Frau for the minimalist interior.{{cite news |url=https://www.motortrend.com/vehicle-genres/1992-infiniti-q45t-vs-1992-jaguar-xj6-vanden-plas-comparison/ |title=1992 Infiniti Q45t vs. 1992 Jaguar XJ6 Vanden Plas Comparison |first=Rory |last=Jurnecka |date=January 19, 2015 |work=Motor Trend |access-date=12 March 2024 |quote=The Infiniti's cabin couldn't be more different from the Jaguar's. It consciously eschews wood and chrome for a monochromatic and spare look conceived with input from Italian furniture maker Poltrona Frau. It's more modern-feeling; the seats are more couch-like; and the ergonomics are more intuitive than the Jag's.}} A grille was added in 1993 and interior wood had appeared by 1995.

Nissan had launched a program called the "901 Movement" or "901 Activity" in 1985, with the goal of "realizing the No. 1 operating performance in the world by 1990",{{cite web |url=https://www.nissan-global.com/EN/HERITAGE/STORIES/ |title=1985: Let's be number one in the world. |publisher=Nissan Global |access-date=12 March 2024 |quote=In the mid 1980s, the R&D division of Nissan began the so-called "901 Activity", an effort to achieve the new goal of "realizing the No. 1 operating performance in the world by 1990". Nissan's new challenge for R&D lead {{sic}} to numerous excellent products, such as the "PRIMERA model P10" and "Skyline model R32", spreading the image of Nissan as a technology company throughout the world.}} making Nissan's the best handling lineup in the industry.{{cite web | archive-url = https://web.archive.org/web/20041117092645/http://gazoo.com/meishakan/meisha/pdf/3095.pdf | archive-date = 2004-11-17 | url = http://gazoo.com/meishakan/meisha/pdf/3095.pdf | website = Gazoo.com | title = History of the Car Selection: Nissan Infiniti Q45 | publisher = Toyota Motor Corporation | language = ja | url-status=dead }} Other vehicles resulting from the "901" program included the 300ZX (Z32), Primera (P10), Silvia (S13), and Skyline (R32);{{cite news |url=https://www.autoevolution.com/news/r32-nissan-skyline-gt-r-performance-car-icon-190392.html |title=R32 Nissan Skyline GT-R: Performance Car Icon |first=Mircea |last=Panait |date=5 June 2022 |work=AutoEvolution |access-date=12 March 2024}} the multi-link suspension of the Q45 was derived from the Z32.{{cite magazine |url=https://books.google.com/books?id=a-QDAAAAMBAJ&pg=RA1-PA105 |title=Fall Firsts: Infiniti Q45 |first=Tony |last=Swan |date=September 1989 |magazine=Popular Mechanics |pages=105–106 |access-date=12 March 2024}}

In 1989 (as a 1990 model) "Full-Active Suspension" was introduced with the Q45a model, which employed 10 sensors sending signals to microprocessor-controlled one-way hydraulic actuators at each wheel, designed to reduce body roll, dive, and pitch.{{cite magazine |url=https://books.google.com/books?id=twEAAAAAMBAJ&pg=PA74 |title=Active suspension test drive: Riding on electrons |first=Don |last=Sherman |date=September 1990 |magazine=Popular Science |pages=74–77 |access-date=12 March 2024}} The suspension provides an active response to road features up to approximately 3 Hz, a limit imposed by minimizing the size of the additional hardware and power losses required to pressurize the hydraulic accumulator; it added {{cvt|202|lb}} and reduced fuel economy by 10%.{{cite news |url=https://www.caranddriver.com/features/a15132223/a-surprising-new-active-suspension/ |title=A Surprising New Active Suspension |first=Csaba |last=Csere |date=September 30, 2004 |work=Car and Driver |access-date=12 March 2024}} The system was brought to the United States starting in 1990 for the 1991 model year.{{cite magazine |url=https://books.google.com/books?id=J-QDAAAAMBAJ&pg=PA38 |title=Imports: Expanding the Infiniti Concept |first=Rick |last=Titus |date=August 1990 |magazine=Popular Mechanics |page=38 |access-date=12 March 2024}}{{cite magazine |url=https://books.google.com/books?id=OGUEAAAAMBAJ&pg=PA34-IA3 |title=Owners Report: Infiniti Q45 |date=June 1995 |first=Michael |last=Lamm |magazine=Popular Mechanics |pages=86–88 |access-date=12 March 2024}} At about the same time, Toyota marketed a limited-production Celica Active Sports (ST183) in Japan with its Toyota Active Control Suspension. Mercedes-Benz also developed a similar system named Active Body Control, which was introduced a decade later in 1999 on the C215 CL-Class.

The Q45t model added Nissan's Super HICAS four wheel steering system and firmer suspension.{{cite magazine |url=https://books.google.com/books?id=fuMDAAAAMBAJ&pg=PA38 |title=Comparison Test: Fast and Fancy |first=Tony |last=Swan |date=February 1992 |magazine=Popular Mechanics |pages=38–42 |access-date=12 March 2024}} A trunklid spoiler was included, reducing drag.{{cite magazine |url=https://archive.org/details/automobilequarte28janprin/page/98/mode/2up |title=LEXUS and INFINITI: Getting the Jump on the Germans |first=Ken |last=Gross |date=January 1990 |volume=28 |number=1 |magazine=Automobile Quarterly |pages=98–109 |access-date=12 March 2024 |url-access=registration}} However, HICAS was deleted for the 1995 Q45t.{{cite magazine |url=https://www.caranddriver.com/reviews/a45510058/1995-bmw-infiniti-jaguar-lexus-mercedes-benz-luxury-sedan-archive-comparison-test/ |title=1995 Luxury Car Comparison Test: Hedonistic Hustle |first=Patrick |last=Bedard |date=February 1995 |magazine=Car and Driver |access-date=12 March 2024}}

Standard equipment included a Bose sound system, leather interior, power adjustable front passenger seats with two position memory feature that also electrically adjusted the steering wheel, exterior mirrors, one-touch power windows, digital climate control, and keyless entry system.

Revisions in 1993 included 17:1 steering (except on the Q45t, which retained the original 15.1:1 ratio), lower ratio 1st and 2nd gears, and a dynamically smooth suspension, thicker glass, keyless remote, auto-dim rear-view mirror, dipping side view mirrors, revised transmission heat exchanger and external ATF filter, revised oval intake ports and revised disc injectors, fog lights and metal-backed camshaft timing chain guides.

{{clear}}

File:1993 Infiniti Q45 in Beige, front left.jpg|1990–93 (pre-facelift, with cloisonné front insignia)

File:1993 Infiniti Q45 in Beige, rear right.jpg|1990–93, rear view

File:Infiniti Q45 (G50).jpg|1994–96 (JDM)

Infiniti offered the Q45 in three trim levels: base, Q45t, and Q45a. All models featured a multi-link suspension at both the front and rear wheels, and the Q45t and Q45a added a rear stabilizer bar, with the Q45a model being larger in diameter; both models have a 1 mm smaller in diameter front sway bar, rear spoiler, BBS forged alloy wheels, 4-wheel steering.

Externally, the 1994 and later model year Q45 can be distinguished by a chrome grille. HICAS and the faster steering ratios was discontinued in the 1995 Q45t model and the Q45a model was not imported in 1996. 1996 models do not feature variable valve timing like the 1990-1995 models do. OBD-II was added for the 1996 model year.

{{Infobox automobile

|image = 1997 Infinit Q45 4.1L front 6.20.18.jpg

|name = Second generation

| model_code = y33

|aka = Nissan Cima

|model_years = 1997 – 2001

|production = July 1996 – December 2000

|related = Nissan Cedric Y33
Nissan Gloria Y33
Nissan Leopard Y33

|wheelbase = {{convert|2830|mm|in|1|abbr=on}}

|length = 1996-99: {{convert|5056|mm|in|1|abbr=on}}
2000-01: {{convert|5069|mm|in|1|abbr=on}}

|width = {{convert|1820|mm|in|1|abbr=on}}

|height = 2000-01: {{convert|1445|mm|in|1|abbr=on}}
1996-99: {{convert|1450|mm|in|1|abbr=on}}

|transmission = 4-speed automatic with manual shift

|engine = 4.1 L VH41DE V8

|designer = Itaru Sugino (1993)

}}

The second generation Q45 was a lightly revised variant of the Nissan Cima for the Japanese domestic market,{{cite magazine |url=https://www.motortrend.com/reviews/lexus-ls-vs-infiniti-q45t/ |title=Lexus LS 400 Vs. Infiniti Q45t - Road Test |first1=Mac |last1=Demere |first2=Kevin |last2=Wing |date=March 1997 |magazine=Motor Trend |access-date=13 March 2024}} which shared a common platform with the Cedric / Gloria (Y33 generation). For most of its vehicles, Infiniti uses a naming convention that combined a letter indicating the series or market position, followed by a two-digit number for engine displacement; for instance, the first generation Q45 (G50) name designates the flagship (Q-series) followed by 45 for its 4.5-liter V8; the second-generation Q45 was an exception (as was the QX4, derived from the contemporary Nissan Pathfinder), as it used a smaller {{cvt|252|cuin|l|1}} VH41DE engine.

Styling featured an inverse curve C-pillar, and a pronounced full-length horizontal character beltline. Despite the shorter wheelbase in the Y33 compared to the G50, rear legroom increased by {{cvt|3.9|in}}; however, the trunk was faulted by owners as being small, with a volume of {{cvt|12.6|ft3|l}}.{{cite magazine |url=https://www.motortrend.com/reviews/1997-infiniti-q45t-wrapup/ |title=Long-Term Wrap-Up: 1997 Infiniti Q45T |first1=Bob |last1=Nagy |first2=Kevin |last2=Wing |first3=Jeff |last3=Bartlett |date=June 1998 |magazine=Motor Trend |access-date=13 March 2024}} Standard features for the second-generation Q45 included traction control, leather interior with faux wood trim, single (later dual) zone climate control, Bose audio system with eight speakers and in-dash single disc CD player, auto dimming rear view mirror, automatic light on and delay off timer, steering wheel-mounted cruise control and head unit controls. Also standard was a memory system for the driver's seat and steering wheel. Available options included an integrated satellite navigation system, 6-disc CD autochanger and heated seats.

The touring package, again badged as the Q45t, featured 17-inch wheels and tires, electronically modulated performance-tuned suspension, blackout grille, blackout headlight treatment, and performance style steering wheel.

The front suspension was changed to a MacPherson strut; rear suspension was similar to the G50, using a multilink design. The second generation Q45 (Y33) was equipped with a viscous LSD and electronic traction control as standard features. Compared to the first generation (G50), the Y33 was approximately {{cvt|200|lb}} lighter, and the steering ratio was slowed further, from 17.0:1 to 18.5:1. As Edmunds noted for the 1997 model year, "The Q45 no longer has aspirations to be a sport sedan, its prime duties now are interstate cruising."{{cite book |url=https://archive.org/details/edmundscomusedca00edit/ |title=Edmunds.com Used Cars & Trucks Buyers Guide 2004 |chapter-url=https://archive.org/details/edmundscomusedca00edit/page/324/mode/2up |chapter=Infiniti Q45 |pages=324–326 |publisher=Edmunds.com |location=Shrub Oaks, New York |year=2004 |isbn=978-0-87759-685-1 |access-date=13 March 2024 |url-access=registration}}

The Q45 (Y33) equipped with the VH41DE producing {{convert|199|kW|hp|0|abbr=on|order=flip}} and {{cvt|278|lbft}} was able to accelerate from 0 to {{convert|60|mph|0|abbr=on}} in approximately 7.5 seconds.{{cite magazine |url=https://www.motortrend.com/reviews/1997-infiniti-q45/ |title=1997 Infiniti Q45 - The 4-Door Luxury Sedan |first1=Bob |last1=Nagy |first2=Randy |last2=Lorentzen |date=October 1996 |magazine=Motor Trend |access-date=13 March 2024}}

{{clear|left}}

File:1997 Infinit Q45 4.1L rear 6.20.18.jpg|1997–1998 Q45, rear

File:Q45t front.jpg|1999–2001, updated front (Q45t pictured with five-spoke alloy wheels)

File:Q45t rear.JPG|1999–2001, updated rear (Q45t pictured with decklid spoiler)

The Q45 front and rear fascias were slightly revised for 1999; HID headlights and an analog clock became standard equipment. Five-spoke 17" aluminum alloy wheels and an electronic adjustable suspension became standard on the Q45t.

The Q45 Anniversary Edition, limited to 3,000 units, offered highest trim level available for the second-generation Q45, available on 2000 models and standard on the 2001 models. The package included all features of the Q45t model along with "Anniversary Edition" markings on the tailgate badge, ignition key, front seat embossing and floor mats as well as genuine wood trim, wood tone/leather steering wheel, special bright machine finish 17-inch performance wheels and exclusive body color door handles.{{cite press release |url=https://usa.infinitinews.com/en-US/releases/release-02cd0cc6f0ef4c9f9909722abc59e04f-2000-infiniti-q45-press-kit-anniversary-edition |title=2000 INFINITI Q45 Press Kit: Anniversary Edition |date=November 7, 2000 |publisher=Infiniti USA |access-date=13 March 2024}}

1998. New front seatbelt pretensioners, mechanical odometer replaced with a liquid crystal display unit from January 1998 production.{{cite web

      |title = 1997-01 Infiniti Q45

      |publisher = Consumerguide.com

      |author =

      |date = 16 July 2014

      |url = https://consumerguide.com/used/1997-01-infiniti-q45/}}

1999. New standard features included power rear-window sunshade, power trunklid pull-down, and high-intensity xenon gas headlights. Taillights were removed from the boot lid.{{cite web |url=https://www.curbsideclassic.com/curbside-classics-asian/curbside-classic-2000-infiniti-q45t-the-japanese-lincoln/ |title=Curbside Classic: 2000 Infiniti Q45t Anniversary Edition – The Japanese Lincoln? |first=Brendan |last=Saur |date=June 6, 2018 |website=Curbside Classic |access-date=13 March 2024}} Touring edition (Q45t) gained dual-mode electronically controlled shock absorbers.{{cite magazine |url=https://www.caranddriver.com/reviews/a44042622/1999-luxury-sports-sedans-compared/ |title=50-Grand Gazelles: 1999 Luxury Sports Sedans Compared |first=Brock |last=Yates |date=November 1998 |magazine=Car and Driver |access-date=13 March 2024}}
2000. New active front head restraints; rear child-seat anchors; one-touch open/close operation for the standard moonroof and all power windows. A newly optional nav system with dashboard touch-screen replaced a simpler, non-video system. The 10th Anniversary Touring edition had machine-finish wheels, special badges and upholstery, wood/leather steering wheel, and bird's-eye maple interior accents. New platinum-tip spark plugs.
2001. Body-color door handles, bird's-eye maple interior trim, and a leather/simulated-wood steering wheel were the only changes for 2001.

{{-}}

{{Infobox automobile

|image = 05-06 Infiniti Q45.jpg

|caption = 2005–2006 Q45

|name = Third generation

|model_code = F50

|platform = Nissan LL platform

|production = January 2001 – 2006
2001 – 2008 (Middle East)
2005–2008 (South Korea)

|model_years = 2002–2006

|transmission = 5-speed automatic

|engine = 4.5 L VK45DE V8

|related = Nissan Cima/Nissan President

|wheelbase = {{convert|2870|mm|in|1|abbr=on}}

|length = 2001-04: {{convert|5069|mm|in|1|abbr=on}}
2004-06: {{convert|5101|mm|in|1|abbr=on}}

|width = {{convert|1844|mm|in|1|abbr=on}}

|weight = {{convert|3900|lb|kg|0|abbr=on}}

|height = 2001-04: {{convert|1495|mm|in|1|abbr=on}}
2004-06: {{convert|1490|mm|in|1|abbr=on}}

|designer = Mamoru Aoki (1998){{cite press release

|title = 2002 INFINITI Q45 Press Kit: Overview

|publisher = Infinitinews.com

|author =

|date = March 7, 2002

|quote =

|url = https://usa.infinitinews.com/en-US/releases/release-8365617012a04d948e13245cde3d7b8a-2002-infiniti-q45-press-kit}}
Yasuhiro Tani (facelift: 2003){{cite web |url=http://oami.europa.eu/RCDOnline/RequestManager |title=Home |access-date=15 July 2015 |archive-date=5 July 2006 |archive-url=https://web.archive.org/web/20060705171238/http://oami.europa.eu/RCDOnline/RequestManager |url-status=dead |publisher=Office for Harmonization in the Internal Market |website=RCD-Online}}

}}

Introduced at the 2000 New York Auto Show,{{cite news |url=https://www.caranddriver.com/news/a15140998/infiniti-q45-auto-shows/ |title=Infiniti Q45 |first=Steven Cole |last=Smith |date=April 2, 2000 |work=Car and Driver |access-date=14 March 2024}} the third generation Q45 (F50) was, like the preceding Q45 (Y33), based on the JDM Cima and was powered by a new twin-cam 4.5 L VK45DE V8 engine using a 5-speed automatic transmission with overdrive.{{cite press release |url=https://global.nissannews.com/en/releases/all-new-2002-infiniti-q45-debuts-at-new-york-international-auto-show |title=All-New 2002 Infiniti Q45 Debuts at New York International Auto Show |date=April 19, 2000 |publisher=Nissan North America, Inc. |access-date=14 March 2024}} Marketing began in April 2001, for the 2002 model year, at a starting MSRP of {{USD|50500|year=2001|round=-2}}.{{cite magazine |url=https://books.google.com/books?id=kP6ESrt1xLUC&pg=PA32 |title=Sedan Without Limits |first=Dawn |last=Stover |date=May 2001 |magazine=Popular Science |page=32 |access-date=14 March 2024}} The Q45 was noted for its distinctive "gatling gun" style HID headlights with 11 bulbs on each side, including seven for the HID low-beam xenon headlights.

At its introduction, Brock Yates, writing for Car and Driver, compared the third generation Q45 against close market competitors, calling it a "superbly refined, comfortable, and distinctive machine."{{cite web |url=https://www.caranddriver.com/reviews/comparison-test/a15145267/cadillac-dts-vs-jaguar-s-type-40-m-b-e430-infiniti-q45-lexus-gs430-audi-a6-42-quattro-bmw-540i-comparison-tests/ |title=Cadillac DTS vs. Jaguar S-type 4.0, M-B E430, Infiniti Q45, Lexus GS430, Audi A6 4.2 Quattro, BMW 540i - Comparison Tests |work=Car and Driver |first=Brock |last=Yates |date=August 31, 2001 |access-date=2011-07-31}}

Development began in 1996, with exterior designs by Mamori Aoki frozen in 1998 and patented in March 2000.{{cite web |url=https://www.chicagotribune.com/1999/04/08/nissan-shows-early-fruits-of-renault-union/ |title=Nissan Shows Early Fruits Of Renault Union |work=tribunedigital-chicagotribune |date=8 April 1999 |access-date=15 July 2015}}{{cite web|url=https://www.forbes.com/2001/02/05/0205feata.html|title=Infiniti's Q Factor|author=Michael Frank|date=5 February 2001|work=Forbes|access-date=15 July 2015}} Aoki said the styling was meant to evoke "a driver's car, not a chauffeur-driven limousine."{{cite news |url=https://www.motortrend.com/reviews/infiniti-q45/ |title=2002 Infiniti Q45 |first=Jean |last=Jennings |date=May 1, 2001 |work=Motor Trend |access-date=14 March 2024}}

Assembled In Tochigi, Japan, the third generation Q45 (F50) was wider, with a longer wheelbase and a {{cvt|5|ft3|adj=on}} larger interior volume than its prior generation (Y33). Torsional rigidity was improved by 40%.{{cite magazine |url=https://books.google.com/books?id=hM8DAAAAMBAJ&pg=PA44 |title=2002 Infiniti Q45 |first=Don |last=Chaikin |date=April 2001 |magazine=Popular Mechanics |access-date=14 March 2024}} The suspension used front struts and multi-link rear, with anti-roll bars front and rear.

The third generation Q45 was the first Infiniti with a laser-based autonomous cruise control system.{{cite magazine |url=https://books.google.com/books?id=WgAAAAAAMBAJ&pg=PA25 |title=Adaptive cruise control: Meet your new co-pilot |first=Ted |last=West |date=March 2003 |pages=24–25 |magazine=Popular Science |access-date=14 March 2024}} Standard equipment included a leather interior, power sunroof, 8-way power front seats, remote keyless entry, rain-detecting wipers, tire pressure monitoring system and side curtain airbags. The center console features two sizes of concealed cup holders and a hatch under the armrest and a second, deeper compartment. Standard electronics include: CD, 8 speaker Bose audio system, trip computer, rear view parking camera system, and voice-activated navigation system with plan (standard map-like view) and bird's eye (three-dimensional) display modes.{{cite web

|title = Infiniti Q45 (2002)

|publisher = The Auto Channel

|author = John Heilig

|date =

|url = https://www.theautochannel.com/vehicles/new/reviews/2002/heilig_infiniti_q45.html}} The voice recognition, by Visteon, is trained to recognize 50,000 words in 150 dialects. The 2002 Q45 was the first vehicle ever to offer voice-controlled navigation and a reverse parking camera outside Japan, following the JDM 1991 Toyota Soarer.{{cite magazine |url=https://books.google.com/books?id=kP6ESrt1xLUC&pg=PA32 |title=Look Forward, See Behind |first=Dawn |last=Stover |date=May 2001 |magazine=Popular Science |page=32 |access-date=14 March 2024}} Bodywork seated five passengers with an aerodynamic drag coefficient of 0.30.

The optional Premium Package included adjustable suspension, 18-inch 8-spoke titanium-color sport alloy wheels, 245/45R18 V-rated tires, rear monitor, rear power sunshade and rear door manual sunshades, climate controlled front seats with heating and cooling functions and perforated leather inserts, navigation system with 7.0-inch LCD display, Intelligent Cruise Control, satellite radio, auto open/close trunk, heated power-reclining rear seats with memory, rear controls for audio and HVAC and rear HVAC vents in B-pillar and front seatback grips — and available chrome-finished 18-inch wheels in place of the titanium wheels.{{cite news |url=https://www.motortrend.com/reviews/infiniti-q45-4/ |title=2002 Infiniti Q45 Four Seasons Test |first1=Jean |last1=Jennings |first2=Tim |last2=Andrew |date=November 2, 2002 |work=Motor Trend |access-date=14 March 2024}}{{cite magazine |url=https://www.motortrend.com/reviews/2002-infiniti-q45/ |title=2002 Infiniti Q45 Road Test |first=Chuck |last=Schifsky |date=October 31, 2002 |magazine=Motor Trend |access-date=14 March 2024}}

The VK45DE has a maximum output of {{cvt|340|hp|kW|0}} and {{cvt|333|lbft}}, motivating the Q45 (F50) sedan from 0 to {{cvt|60|mph}} in 6.0 seconds.

{{clear}}

File:InfQ45.jpg|2002–2004 Q45

File:2003 Infiniti Q45 (4.5) V8 rear 10.27.18.jpg|alt=|2002–2004 Q45, rear view (F50; pre-facelift)

File:05-06 Infiniti Q45 rear.jpg|2005–2006, rear view

The 2003 model received a revised security system, numerically higher final drive ratio (for better acceleration - decreased highway fuel economy), reprogrammed TCU, and a mid-year satellite radio option. The CD changer could load CDs directly at the dashboard head unit.

For 2005, the Q45 received a mild facelift, with revised front and rear fascias; hood; grille; trunk decklid and finisher; headlights; side, front and rear chrome accent trim; and integrated fog lights and LED taillights. The interior featured re-contoured double-stitched seating, all white luminescent gauge markings, genuine metal knobs for accessory controls, a darker shade of maple interior trim, recalibrated transmission and new 17" alloy wheels. 1129 Q45s were marketed in the United States for 2005.

Infiniti discontinued marketing the Q45 in the USA after model year 2006, its flagship position assumed by a newly redesigned Infiniti M35/45, an mid-luxury (executive) car shorter in length than the Q45, though with greater interior room and performance, as well as featuring a rear multilink suspension and front double wishbone.

A new Infiniti flagship was anticipated by the end of the 2000s decade. According to Mark Igo, the general manager of Infiniti North America, "the new Q will make the brand better, but it is questionable whether it will be very profitable".{{cite web |url=http://www.motorauthority.com/new-infiniti-q-flagship-still-in-doubt.html |title=New Infiniti Q flagship still in doubt - MotorAuthority - Car news, reviews, spy shots |publisher=MotorAuthority |access-date=2009-06-25 |archive-date=2009-07-03 |archive-url=https://web.archive.org/web/20090703111746/http://www.motorauthority.com/new-infiniti-q-flagship-still-in-doubt.html |url-status=dead }}

Infiniti introduced the next iteration of its flagship, the Y51 series Infiniti M37/56/Nissan Fuga in November 2009. Continuing as a mid-luxury car, the new Infiniti M is only {{convert|50|mm|in|1|abbr=on}} shorter than the final generation Q45, with the same width dimensions of {{convert|1845|mm|ft|1|abbr=on}} and height of {{convert|1515|mm|ft|1|abbr=on}} compared to the F50 series Cima of {{convert|1490|mm|ft|1|abbr=on}} height.

By August 2010 the Nissan Cima, on which the final generation Q45 essentially was based, had been discontinued in Japan, along with its Nissan President sibling. This made the second generation Nissan Fuga the marque's top-of-the-line flagship sedan. When the Fuga assumed the role as flagship sedan of Nissan Japan August 2010, it became the first time that Nissan didn't sell a premium luxury V8 sedan in Japan, although the Fuga's North American cousin, the Infiniti M56, is offered with a V8 shared with the Infiniti QX56.

In May 2012, Nissan released a new version of the Cima in Japan, based on the Fuga Hybrid (Infiniti M35h).{{cite web|title=Nissan Releases All-New Cima|url=http://www.nissan-global.com/EN/NEWS/2012/_STORY/120425-01-e.html|access-date=2012-12-29|archive-url=https://web.archive.org/web/20160303235620/http://www.nissan-global.com/EN/NEWS/2012/_STORY/120425-01-e.html|archive-date=2016-03-03|url-status=dead}}

On 17 December 2012, Infiniti announced that all of its future sedan offerings will use the Q prefix, starting from the Q50 as a G37 replacement, Q70 for its M35/45/56 replacement, and a rumored Q80 for the new flagship model.{{cite web|url=http://blog.caranddriver.com/infiniti-unexpectedly-changing-all-model-names-to-q-qx-for-2014-confirms-new-range-topping-sedan/ |title=Infiniti Unexpectedly Changing All Model Names to Q, QX for 2014, Confirms New Range-Topping Sedan |date=17 December 2012 |publisher=Car And Driver |access-date=2013-03-21}}

{{reflist}}

{{commons category|Infiniti Q45}}

• [http://www.infinitiusa.com/ Official Infiniti USA site]
• [https://web.archive.org/web/20090129190602/http://www.infiniti.com/m/index.html Q No Longer Available, See Infiniti M]
• [https://web.archive.org/web/20060428184208/http://infiniti.ca/en/models/q45/overview.html Official Canadian site]
• [http://fgy33.tripod.com/id20.html 1997 Q45 vs 1997 Lexus LS 400 Motor Trend article]

{{Infiniti vehicles}}

{{Infiniti}}

Q45

Category:Rear-wheel-drive vehicles

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