If you
realize that YOU are the one doing the
tailgating, the
process is much
simpler.
Immediately start making your way toward an empty road somewhere. If you have any passengers, drop them off unless they also tailgate.
Now drive very fast, and then turn your vehicle toward a cliff, tree, telephone pole, or some other large object which will not cause harm to others should you break it.
If you are still alive after the crash, remain inside the car if it is on fire, otherwise try and make it on fire, and climb back inside.