Choosing the Best Solution

We thought our best solution was our third solution with the car being completely horizontal and using CDs as wheels, with the mousetrap positioned nearer to the front. We chose this because we thought there would be less of a chance of the extension hitting the ground when it reached the front of the car. Since the extension wouldn't hit, there would be less of a chance of the car stopping due to unneeded friction. Also, we figured that CDs would make much better wheels than the plastic wheels.