Well, it wasn't in a car. I was driving a four-wheeler when I was younger out and around our yard and our neighbors yard (they were good friends and were okay with it). Well, on this day I had a friend sitting behind me. I turned a corner and saw a decent sized white brick of what I was assumed was Styrofoam, so I obviously drove at it and hit it.

It was not Styrofoam. It was concrete. My passenger was ejected and I just barely managed to keep the four-wheeler from flipping.

We both come out of it unharmed and for some reason he's still my friend (and roommate). Popped one of the front tires, though.