Drive your lines, when faster guys are behind you do not make sudden moves or do not stop but take the next corner with a wide line so you give the guys room where they want it.
When you drop dead on a fast piece of the circuit give a yell where you are stopped to warn all other drivers. If you notice your engine has stopped and the car rolls, try to rol it at to safe place or just at the side of the track.
If you are using a baseball cap, do not wear it or turn it to the back.
If your car has no girp/balance just stop and try to better it. When you go on with driving you will not irritate yourself but also the others.
Use the frequency bord
Check alway your frequency if it is free
Use colorfull bodies, a black body is asking for accidents.