^ The full list with the old RM cars:
Acura NSX LM Race Car '91
Chevrolet Camaro SS Touring Car '10
Chevrolet Corvette Z06 (C6) LM Race Car '06
Chevrolet Corvette ZR1 (C6) LM Race Car '09
Honda CIVIC TYPE R (EK) Touring Car '97
Honda INTEGRA TYPE R (DC5) Touring Car '04
Lexus IS F RM '07
Mitsubishi Lancer Evolution IX GSR RM '05
Nissan SILVIA spec-R AERO (S15) Touring Car '02
SRT Challenger SRT8 Touring Car
Subaru IMPREZA Sedan WRX STI Rally Car '05
TVR Tuscan Speed 6 Touring Car '00
Volkswagen Golf IV GTI Touring Car '01
Mitsubishi Lancer Evolution X Rally Car
Chevrolet Camaro Z28 Race Car '69
Dodge Challenger R/T Race Car '70
Lotus Elise 111R Race Car '04
Lotus Elise Race Car '96
Suzuki Cappuccino (EA21R) Race Car '95
TVR Tuscan Speed 6 Touring Car '00
Honda CR-Z Touring Car
Mazda Roadster Touring Car
Mazda RX-7 Touring Car
Nissan GT-R R35 Touring Car
Nissan Skyline GT-R R33 Touring Car
Nissan Skyline GT-R R32 Touring Car
Nissan Skyline GT-R R34 Touring Car
Subaru Impreza Touring Car
Toyota Prius Touring Car
From this list, the Corvettes are the stand-ins for C6.R, the NSX is inspired from the NSX LM GT2 and NSX GT1 Turbo, the Evo X and Impreza STi are Group N rally cars, the '69 Camaro and '70 Challenger are 70s NASCAR machines, the Golf is a one-make cup car racer, and the rest... (except the Skylines which I already answered) you figure out.
