Backing up

I was driving this morning and found myself immediately behind a black minivan.

It had Ken Garff symbols on the windows, had Ken Garff symbols on the paint, probably had Ken Garff symbols on the seats, and the steering wheel and the spare tire too. As I pulled up behind it, I saw that across the rear bumper was scrawled "We back up every vehicle we sell!"

I wondered, though just for an instant, why they would spend so much time driving in reverse.