Comment Re: Seat belts? (Score 2, Insightful) 345
Not this crap again. Didn't they bust this myth on Mythbusters too? It doesn't matter what you hit, a wall or another object travelling at an arbitrary speed in arbitrary direction. All that matters is delta V. If you were travelling at 50 mph and then as the result of collision ended up travelling 0 mph -- it absolutely doesn't matter what was the object that you hit, a wall, or another car with similar mass head on -- the kinetic energy that you need to dissipate is exactly the same. Yeah, there are nuances about crumple zones and unlike the wall, you hardly every stop at exactly 0 mph with head on collision, but that's minor details.
It's a different story if you hit a truck with a much larger mass, and the truck continues on its path with slightly reduced speed (i.e. it plows through your car). Then yeah, it's much worse, because you get some of the truck's kinetic energy. On the other hand, if you hit a bike head on, you win hands down. But assuming both cars involved in a head-on collision are about the same mass (and ignoring crumple zones and any residual speed you might have), it will be exactly the same as hitting a wall.