Well, on second thought, maybe it shouldn't be how to wash your car, but more along the lines of how to total your car in less than a second.
There have been some pretty ambitious experiments on YouTube, but nothing comes close to this one. Here we see a gigantic digger filled with water ready to drop it all at once on top of a car, and by no means is it gentle.
The aftermath, a few seconds after the water has dropped, is astounding, you can clearly see the car is completely wrecked! But nevertheless, it's quite entertaining to watch!
The big question we have though is, where do you get such a massive digger from?