text: rubber band car? hi...i have this project for physics to build a rubber band car. it has to go at least 4 meters, and we can use any types of rubber bands we like without a number limit. we can use any and all supplies (even already made cars). the only thing we can't use are electronic powered devices, so we have a very wide variety of choices. what is the best way to make a rubber band powered car that goes beyond 4 meters? i would say somehow build the car so that the untwisting of the rubber bands rotate one of the wheels or 2 wheels by way of an axle like the old toy wind up balsa airplanes work.