across the rooftop

I've been taking a lot of buses lately. The child in me always wants to go upstairs if it's a double decker. Get the front seat if it's free. So this is a view from the top of the bus on the way home.
Each shiny surface gives us another window into the visible world. This one is the roof of a parked car. Within the dark body a panorama reflecting its surroundings, a hybrid of machine and landscape. There are these endless worlds reflecting back, caught at some unexpected angle. The day stretches and bends and shrinks and expands. It is being perpetually reflected where there is light enough. Which reflection is the true mirror?