Either the owner of this car is in a competition to see who can eat the most McDonald's, they're trying to build a passenger out of used fast food wrappers so they can drive in the carpool lane, or they're starring in a new reality show called Car Hoarders. Whatever the case, this person obviously knows how to live the high life!
I bet there's a Burger King party happening in the back seat, and the two are kept separate so another Burger War doesn't take place between the Brits and the good ol' U.S. of A. Go Team Ronald!
The reason the driver's seat is so "clean" is that's where the owner sits, the actual driving region of the nest. Can't have a stray soda cup rolling under the pedals, can we?
Indeed, it has an air of plausibility, but the appearance of being staged.