Ultima Mk2
{{Short description|Kit car}}
{{Infobox car
| name = Ultima MK2
| manufacturer = Ultima Sports Ltd
| production = 1984–1989
| aka = Ultima Mk3
| designer = Lee Noble
| body_style = Coupe
| chassis = Space frame
| related = Ultima Mk1
| layout = Mid engine, RWD
| engine = see table
| transmission = 4/5 Speed Manual
| length = {{convert|4000|mm}}
| width = {{convert|1840|mm}}
| height = {{convert|1200|mm}}
| weight = {{convert|800-1000|kg}}
| wheelbase = {{convert|2640|mm}}
| predecessor = Ultima Mk1
| successor = Ultima Mk3
}}
The Ultima Mk2 and the Ultima Mk3 are sports kit cars that were produced by English automobile manufacturer Ultima Sports Ltd from 1984 to 1989, and 1989 to 1996 respectively.
Ultima Mk2
This is The second model produced by the company, with a total of 13 cars would be produced. Two of the produced cars were MK2 5000 race cars. The car would use an evolved Steel Square-Tubed chassis, developed from the Mk1. Ted Marlow, the eventual cofounder of Ultima Sports Ltd would buy the first Mk2, as specced with the original Essex V6. The Mk2 would eventually go racing under the "Ultima Mk2 5000" moniker, using an unused Formula 5000 Cooper-Chevrolet Small-Block V8, where they would find success, winning 3 races they entered the car in, and scoring points in the other 2.{{cite web |last=Cowley |first=Mark |date=10 January 2022 |title=Here's What Everyone Forgot About Ultima And Their Cars |url=https://www.hotcars.com/heres-what-everyone-forgot-about-ultima-and-their-cars/ |accessdate=16 December 2024 |website=HotCars}}{{Cite web |title=1983-1991 |url=https://www.ultimasports.co.uk/History/1983 |access-date=2024-12-14 |website=Ultima Sports Ltd}}{{Cite web |title=Addendum1 |url=https://www.ultimasports.co.uk/History/Addendum1 |access-date=2024-12-17 |website=Ultima Sports Ltd}}
= Mk2 Factory Specifications =
| class="wikitable"
|+ !Displacement !Engine !Horsepower !Torque !Weight !Ref |
| {{cvt|3.098|L|cc cuin|adj=ri1|0}}
|Ford Essex V6 (Original Prototype) |{{cvt|148|bhp|PS kW}} at 5,000 rpm |{{cvt|254|N.m|lb.ft}} at 3,000 rpm |{{Convert|845|kg|lb|abbr=on}} |
| rowspan="3" |{{cvt|5.733|L|cc cuin|adj=ri1|0}}
|Chevrolet Small-Block V8 (UK Tune) |{{cvt|255|bhp|PS kW}} at 5,500 rpm |{{cvt|447|N.m|lb.ft}} at 4,100 rpm | rowspan="3" |{{Convert|900|kg|lb|abbr=on}} |
| Chevrolet Small-Block V8 (US Tune)
|{{cvt|345|bhp|PS kW}} at 5,500 rpm |{{cvt|475|N.m|lb.ft}} at 4,100 rpm |
| Chevrolet Small-Block V8 (Race Tune)
|{{cvt|475|bhp|PS kW}} at 6,000 rpm |{{cvt|610|N.m|lb.ft|0}} at 5,000 rpm |
| rowspan="2" |{{cvt|6.2|L|cc cuin|adj=ri1|0}}
|Chevrolet Small-Block V8 (Road Tune) |{{cvt|400|bhp|PS kW|0}} at 5,000 rpm |{{cvt|533|N.m|lb.ft}} at 3,000 rpm | rowspan="2" |{{Convert|1000|kg|lb|abbr=on}} |
| Chevrolet Small-Block V8 (Race Tune)
|{{cvt|560|bhp|PS kW|0}} at 5,500 rpm |{{cvt|740|N.m|lb.ft|0}} at 3,500 rpm |
| {{cvt|4.999|L|cc cuin|adj=ri1|0}}
|Cooper-Chevrolet Formula 5000 V8 (MK2 5000 race car only) |{{cvt|600|bhp|PS kW|0}} at 9,000 rpm |{{cvt|700|N.m|lb.ft|0}} at 5,300 rpm |{{Convert|800|kg|lb|abbr=on}} |
Ultima Mk3
{{Infobox car
| name = Ultima Mk3
| production = 1989-1996
| manufacturer = Ultima Sports Ltd
| aka = Mk3
| designer = Lee Noble
| body_style = Coupe
| chassis = Tubular Chassis
| layout = Mid Engine, RWD
| engine = see table
| transmission = 5-speed Manual transmission
| wheelbase = {{convert|2640|mm}}
| width = {{convert|1800|mm}}
| length = {{convert|4000|mm}}
| height = {{convert|1050|mm}}
| weight = {{convert|900|kg}}
| sp = uk
| successor = Ultima Sport
| predecessor = Ultima Mk2
}}
In 1989, the updated Mk3 replaced the Mk2.{{Cite web |title=1992-1998 |url=https://www.ultimasports.co.uk/History/1992 |access-date=2024-12-17 |website=Ultima Sports Ltd}} The Mk3 itself was heavily revised in 1996, becoming the Mk4 which was sold as the Ultima Sport. The Mk3 would make up half of Ultima sales by the end of its life because 13 of the 26 total Ultima Kits sold would be Mk3's. The car would be the final Ultima developed by Lee Noble. There would be a novel chassis made for the car, an Aluminium Tubular chassis, now fit exclusively with the Porsche G50 5-speed, used also in the Mk2.{{Cite web |title=1992-1998 |url=https://www.ultimasports.co.uk/History/1992 |access-date=2025-01-28 |website=Ultima Sports Ltd}} Ted Marlow and Lee Noble would establish Ultima Sports Ltd to build the Mk3. Even though the prototype of the Sport and the Mk3 RS Race Car would use an Inline 4 from a Darrian T90, there would be no standard option to have an Inline 4 in the Sport or Mk3.{{Cite web |title=Addendum1 |url=https://www.ultimasports.co.uk/History/Addendum1 |access-date=2025-01-28 |website=Ultima Sports Ltd}}
= Mk3 Factory Specifications =
| class="wikitable sortable"
!Displacement !Engine !Horsepower !Torque !Weight !Ref |
| rowspan=2|{{cvt|2.975|L|cc cuin|adj=ri1|0}}
|Renault PRV V6 (prototype only) |{{cvt|311|bhp|PS kW}} at 6,000 rpm |{{cvt|360|N.m|lb.ft|0}} at 4,600 rpm | rowspan="4" |{{Convert|900|kg|lb|abbr=on}} |
| Renault PRV V6 (main production version)
|{{cvt|299|bhp|PS kW}} at 6,000 rpm |{{cvt|330|N.m|lb.ft|0}} at 4,600 rpm |
| {{cvt|5.733|L|cc cuin|adj=ri1|0}}
|{{cvt|388|bhp|PS kW}} at 5,750 rpm |{{cvt|530|N.m|lb.ft|0}} at 4,250 rpm |
| {{cvt|6.200|L|cc cuin|adj=ri1|0}}
|{{cvt|444|bhp|PS kW}} at 5,500 rpm |{{cvt|630|N.m|lb.ft|0}} at 3,500 rpm |
| {{cvt|1.993|L|cc cuin|adj=ri1|0}}
|Ford-Cosworth YB I4 (turbocharged) (Mk3 RS) |{{cvt|510|bhp|PS kW|0}} at 6,800 rpm |{{cvt|575|N.m|lb.ft|0}} at 4,500 rpm |{{Convert|700|kg|lb|abbr=on}} |