better car physics

** why do I ram into a wall at 300 mph and be fine? why do I take 0 damage when my car EXPLODES? why can I get in a head on collision and just walk it off. the only good thing is that people can be run over. cars should have like a durability bar that depletes the more you hit stuff, like 50 mph vs wall should hurt, and 50 mph car vs 50 mph car should hurt more. also, I should like take 50% hp and be lit on fire when i’m in an exploding car**

no. these cars are funny as hell