First Test
When we first tested the cars, we had just simply tested them, they were made from Balsa Wood, a plastic proppler, a rubber band, and wheels and axels.
Second Test
![Picture](/uploads/1/8/6/9/18698856/478759361.jpg)
My second test I used two rubber bands instead of one, it made it go much faster and it took less twists for the first rubber band, other designs could've been made to make it go faster, unfournetly I did not have enough time to do so.