An odd experience

Coming home on Friday, I noticed I was behind a tanker truck which was polished stainless steel. The convex rear of the tank, coupled with the polished surface, made a very nice ‘fish eye lens’ type of mirror.
The odd part of it was: watching myself in the rear of that truck, I could see my car and all of the landscape around me rushing by, but it was as if I was watching me as someone else, or like watching myself in a movie, but in real time. It was kinda cool. I tried snapping some pictures with my phone camera, but they don’t really convey the experience.