Quote Originally Posted by ironchef
They said in an interview i read about the commercial that they used some kind of magnet system to make the wheel go up, the whole thing is 100% non cgi.
They used wheel bearings to make them roll uphill, weighted them just so.

There IS cgi in the commercial but ONLY on the rolling muffler. They had to link it together in that part, so there was a bit of fiddling with it.. but it's all natural in that everything that you see happening did happen with only the laws of physics as the Master of Ceremonies.