Check out this new promotional video for the BMW M135i titled 'The Fastest Christmas Song in the World.' It's got nothing to do with how fast the people are singing but more about how fast the car is going.

DTM driver Martin Tomczyk is behind the wheel of the M135i and he's chauffeuring the Zurich Acapella Group around the track as fast as the car will allowe while they belt out 'Jingle Bells' and possibly soil their shorts.

Can we do the same thing to neighborhood carolers when they knock on our door?