The video below is really quite amazing. You may have already seen it on television. If you haven't, odds are that you will. Either way, you will be amazed. Not just by what you see with your eyes, but that fact that it took 606 takes to get it right.
And yes, those tires are really rolling uphill.
This is quite truly a Rube Goldberg device if I have ever seen one. Ingenious in its complexity, simple in its concept, very few commercials warrant the repeat viewings that this one does. Enjoy.
(note: Flash6 is required)