I got a rubber band car assigned as a project today. The goal is for the car to go farther/faster than the car my teacher is making, so I have a series of questions I wrote down while he was explaining the project. My first question is: Would a certain type of wheel material or size make a difference when it comes to distance/speed? If so, which type of material/size would be best? and 2. Would the material, shape, or weight of the car make a difference when it comes to speed/distance? If so, what would be the best shape, size, and material? I don't have any more questions at the moment but any tips and tricks or extra info would be very appreciated ;)