The Smashup Derby Cars were called "Crash Bangs", I believe. Their Jingle:"Crash Bangs, Smash'em up, put 'em back together." Crash Up Derby Cars Two cars you put stickers on. The first stickers were broken windows and bent metal. Then you put cool stripes and things on the pieces that popped off. Pull them back and aim them at each other, they took off, jumped a ramp and the pieces like the hood pop off. Im not really sure I got the name right but they were were cars that had a small wheel in the middle and you wound them up buy place a cord the wheel in the middle and pulling it out once you did that you would place the cars on the ground and they would crash into each other and parts would come off that you could put back on each car.