Making Multiple Cars

Enjoy building your car? Well, why not make several and pick the fastest car to enter into your race competition? Of course, this begs the question as to how you judge the speed of each candidate car. Later in the video, we show you how to build a very simple race track just for this purpose.
A picture of multiple cars.
Testing multiple cars to find your entry car.
The results of using physics to build a pinewood derby car.