In this project we explored the creation of alternate energy cars that could provide, energy efficient, cost efficient, and environmentally friendly use. At first our group had broad ideas to use dense gas, but after a phone call and plenty of research, we found that this was extremely expensive, and probably would not work. After extensive thought, we settled on the use of elastic energy in the form of rubber bands. A fairly light body paired with many rubber bands and some wheels made for a unique, rustic looking design. Starting the car is very easy, as the user only needs to twist the back axle for the desired amount of time. The tighter the band when turning, and the more rotations done will affect how far and fast the car can travel. Once finished, we calculated the potential, kinetic, and total energy as well as the car's velocity. Finally, we created an interesting and entertaining presentation to sell the car's best features. This project was very fun because it was fairly challenging to manipulate the power of the car without the use of electricity. During this project I not only learned that gas is extremely expensive, but also that solar is a constant source of power, provided that there are no clouds and that it is daytime. I learned that I need to work on staying focused and on task and not getting frustrated when plagued with ideas that just won't work. I also need to work on remembering materials and staying organized. The best part of this project was getting to work the very loose rules of advertising in our PowerPoint. It was fun trying to find ways to turn our car's downfalls into benefits for the consumer.