Reynard 99I

{{short description|Racing car designed and built by Reynard Racing Cars}}

{{Use dmy dates|date=April 2022}}

{{Infobox racing car

| Car_name = Reynard 99I

| Category = CART IndyCar

| Constructor = Reynard Racing Cars

| Designer =

| Predecessor = Reynard 98I

| Successor = Reynard 2KI

| Team =

| Drivers =

| Technical ref =

| Chassis =

| Front suspension =

| Rear suspension =

| Length = {{convert|190|in|mm|0|abbr=on}}

| Width = {{convert|78-80|in|mm|0|abbr=on}}

| Height = {{convert|37|in|mm|0|abbr=on}}

| Wheelbase = {{convert|116|in|mm|0|abbr=on}}

| Track = {{convert|68|in|mm|0|abbr=on}} (Front)
{{convert|68|in|mm|0|abbr=on}} (Rear)

| Engine name = Honda Indy V8 turbo
Mercedes-Benz IC108
Toyota RV8D
Ford/Cosworth XD

| Capacity = {{convert|2.65|L|cc cuin|0|lk=on|abbr=on}}

| Configuration = V8

| Turbo/NA =

| Engine position = mid-engined

| Gearbox name =

| Gears = 6-speed

| Type = sequential manual

| Differential =

| Weight = {{cvt|1550|lb|kg}}

| Fuel = Methanol

| Lubricants =

| Tyres = Firestone Firehawk
Goodyear Eagle

| Debut = 1999 Marlboro Grand Prix of Miami
Miami, Florida

| Races =

| Wins =

| Cons_champ =

| Drivers_champ =

| Teams_champ =

| Poles =

| Fastest_laps =

}}

The Reynard 99I is an open-wheel racing car designed and built by Reynard Racing Cars that competed in the 1999 IndyCar season. It was extremely dominant winning 18 out of the 20 races that season, including the season-opener at Miami. It later won both the constructors' and drivers' titles later that year, being driven by Juan Pablo Montoya.{{cite web | url=https://www.adrianreynard.com/reynard-racing-cars/ | title=Reynard Racing Cars – Adrian Reynard }}{{cite web | url=https://www.caranddriver.com/features/a15112225/what-id-do-differently-adrian-reynard-feature/ | title=Adrian Reynard: What I'd do Differently | date=27 June 2013 }}{{cite web | url=https://bringatrailer.com/listing/1999-honda-reynard-champ/ | title=1999 Honda Reynard Champ Car }}{{cite web | url=https://beyondtheflag.com/2018/11/09/cart-season-review-1999-fedex-championship-series/ | title=CART: A season review of the 1999 FedEx Championship Series | date=9 November 2018 }}