The first piece
Rubber band cars are a piece of card board, with 2 wheels (CDs) and a engine (rubberband). The car is powered by the force of the rubber band and how the rubber band is causing the axel to twist making the wheels turn.
The very first car we made was the default car that everyone starts off with. It was a piece if cardboard, that was cut to add a stick so we could make a axel. We then ducked taped 2 CDs on the side poorly because we were rookies at first. Then we took a small piece on duck tape and put a rubber and in to power it. This car started off with a distance of 10 ft