What Happened to Us That Day?

It was like someone had started the car up, gotten out and somehow found a way to drive it down the highway until it crashed into us. Police ruled out some kind of remote control device too. They took the car apart and found absolutely nothing to suggest that the acceleration or steering had been manipulated from a remote location. If anyone has any suggestions feel free to drop me a line. I'll be all too happy to listen to your theories.