Live for speed, hands down. You can modify pretty much ANYTHING. And theres no storyline. So it's all test and tune. Not to mention it's realistic and FREE!! Download link at the bottom.
You can tune: Engine sounds, BOV Sounds (You can even record and use your own car sounds), Brakes, Suspension, Tires and pressure, Downforce, Steering angles, Gear ratio, and just about everything.
Pics
You can tune: Engine sounds, BOV Sounds (You can even record and use your own car sounds), Brakes, Suspension, Tires and pressure, Downforce, Steering angles, Gear ratio, and just about everything.
Pics
HTML:
Http://LFS.net