Tested on Nurburgring GP/F.
All cars are oil changed with stock suspension/drivetrain. I think the IS350 and the Impreza are the only ones with the engines brokem in properly.
Car - HP - Weight - Time - Top speed on home straight - Mods
ARTA - 345 --- 1175 -- 2'01.736 - 143
RX-7 -- 330 -- 1100 - 2'01.754 - 144
Celica - 321 -- 1050 - 2'01.972 - 144
MR-S -- 315 -- 1125 - 2'02.119 - 143
IS350 - 333 -- 1150 - 2'02.573 - 141
Impreza - 333 - 1100 - 2'02.839 - 141
Silvia - 311 - 1150 - 2'06.527 - 140
Silvia - 360 - 1150 - 2'04.361 - 145 - Stage 2 turbo
IS200 - 330 -1010 - 2'06.974 - 143 - Stage 3 turbo
The Silvia understeers a lot so I had to take 10 downforce off of the rear.
The IS200 is a nice car, just can't keep up (like Imari said).
I'm not sure why rigidity improvement isn't allowed for the Impreza either. I find the IS350 much better than it. Anyone agree?
By the way. If anyone has an Mazda Atenza touring car, if you feel comfortable add me on PSN send me the car, I'll test it and include it with these times, then I'll send it you back.