Traffic in many German cities is atrocious, and some people don't have the patience to wait for a train to show up and be herded on the rails like some sort of cattle. One particularly ballsy German decided to take his car and run the same track used by those public trains. We definitely don't recommend sharing rails with commuter trains, as we half expected a tire to come bouncing out of one of the tunnels. Still, the reaction of people waiting on the platform for a train and seeing a hatchback fly by is priceless.
For those wondering, the accompanying music is called "An Tagen wie dieser" and is by Fettes Brot, one of Germany's biggest bands.
[Thanks for the tip, jdawg]
[Source: YouTube via