My current list of winners:
Mustang Boss 429 '69 (Sport Medium)
512BB '76 (Sport Medium)
Corvette ZR-1 '89 (Sport Medium)
GTO Twin Turbo '91 (Sport Medium)
Testarossa '91 (Sport Medium)
964 Carrera RS '92 (Sport Medium)
Supra RZ '97 (Sport Hard)
22b STI '99 (Sport Medium)
Evo VI T.M. Edition '99 (Sport Medium)
RX-7 '02 (Sport Medium)
M3 '03 (Sport Medium)
Viper GTS '02 (Sport Hard)
M3 '07 (Sport Medium)
R8 '07 (Sport Hard)
GranTurismo '08 (Sport Medium)
GT3 '09 (Sport Hard)
F-Type '14 (Sport Medium)
Huracán '15 (Sport Hard)
Mustang '15 (Sport Medium)
Comments:
Viper is ridiculous, what a beast, monster of a car, Praiano needs to tune it, I seriously think this car can do 2:09s and 08s in more capable hands than mine. Also extremely economical. You shift when tacho bars turn red (early) and it can do 10 laps easily.
964 RS is currently my fastest car. Excellent in every way. It understeers at high speeds but it stays planted, so it isn't much of a problem.
Corvette similar to Viper, but slower. Might need a better build and tune.
Supra is a good car but needs more downforce, because standard body is already slippery, also the driving position isn't the best so it's hard not to hit the barriers in dash cam.
GT3 another favorite, the engine is very loud so it can get tiring to drive, but the car has an excellent chassis and the only reason it isn't faster is because it lacks top end at this level.
Maserati GranTurismo is incredible, very easy and smooth. I lowered wing compared to Praiano's tune to reduce understeer in high speed corners.
Subaru 22b is a good car, easy to drive, but lacks top end.
Ferrari 512BB is a car with potential, surprisingly economical so you can pit late, but unstable with default tune.
M3 E46 is similar to E92 but a bit worse because the engine is a bit lacking.
Other cars I tried:
M3 Sport Evo '89 (Sport Medium)
Alfa 4C '07 (Sport Medium)
Golf GTI '14 (Sport Medium)
M3 E30 has the handling, but no top end. Engine doesn't cut it. This car won't do well at this event. It can win, though.
Alfa same as M3, but engine is turbo so maybe adding ballast + power fixes the underpower problem.
Golf is fast but chews through its front tires and you get tons of understeer when worn. Not intended for 600PP IMO. You can run and maybe even win in it though.
Ending note, I could be running the Tomahawk but trying all these cars is so much more fun that I don't mind the slower credits.