You are specifying your class in traffic by showing your driving skills in traffic. If you drive without hitting cars, you can have a nice class but if you drive by hitting cars, you may get a class like this; "You need a bus ticket in order to go with buses because it is much more safer for you.". So, try to drive your car well.
Game controls:
Move: "LEFT-RIGHT ARROW KEYS"
Nitro: "UP ARROW KEYS"
Good luck!