Difficulty/Realism Modes:
Arcade
Intermediate
Simulation
Legendary (!!!mind blowing!!!)
Game Modes:
Quick Race
Training
Championship (Free Practice, Qualification and Race)
Challenges (Like mini games and more...)
Online:
11 players
Extras:
Damage . affects performance, bursting tires duo to overheating (promised for the final release not in the preview build)
Setups (suspensions, gearbox, brakes, tires, inclination of the rear wing...)
Wet/Dry Tracks
Wheels . Official Microsoft 360, Logitech G25 and through the many models Thrustmaster
Hope you like this info. The game is shaping very well for its price in fact.
If you want more details just ask. If I can answer, thou. lol