The game is fairly nice, but it has some major problems.
The good:
Very nice graphics.
Very convincing techinical information on vehicles (just enough to make people think its legit).
It's a racing game like Gran Turismo.
The music is very catchy.
No DRM, including starforce. i wish gog host valve games w/o steam :'(
The bad:
SUPER BUGGED!
Load/Save in race locks game. Try changing car parts/settings and the game will refuse to accept changes.
Doesnt always remember my gamepad configuration.
The part replacements that do work require slots. like 30 slots remaining etc etc, instead of money. that means i can't have the best breaks and best engine at same time.
The physics aren't quite realistic. close enough, but not top notch. almost like ridge racer, but made to feel more like gran turismo.
Personally i'd rather GT, over this, but this is still a nice game. If the bugs ever get fixed, then its definitely worth a buy (for 10$ at most).