Answer:
Try to stop or move to the opposite side.
Step-by-step explanation:
When a car accident is going to happened, the best thing to do is not to crash, of course, also if you can get out from the car on time, that could be safe. But if the impact will be for sure, if you stop the car, fasten the seat belt and put you in fetal position that is the security position to receive an impact.
In this way, the velocity of the other car will be reduce by the zero velocity of your car, so the momentum will be less.
Hope this info is useful.