5 point harness and I also have a multi nozzle halon system. But these cars are still dangerous. Drive REAL defensively and take a drivers training course, no, take several.
I have seen some totally wiped out cobras in my time, and the occupants walked away. The worst is a t-bone square in the door, if they hit the tires you might be OK.
It has occured to me several time to wear a helmet while driving on the road,,,but the thrill and danger is part of what makes a cobra such a outstanding diversion from everyday life.
Good luck.
safety
fire