I found all 3 of these races really easy. Yeah, the FWD sucks because it pushes wide when you are on the gas, but as soon as you let off, the car tracks around the turns really well. You got to make sure you give the car time to slow down as its brakes and tire grip aren't that great, but after driving that 500hp Supra, this 2 chili Civic is glued to the road.
Umm, maybe I'm not remembering something correctly, but I don't think there is a 1000hp tuning race at Trial Mountain. I remember there being races at Tokyo East and Deep Forest.