I am trying to find information on a toy I had as a kid. It was a toy car dragster (Black Widow) that you would stick a plastic toothed cord in and pull out real fast and the car would go real fast on the ground. My cousin had a similiar set of cars that were demolishen derby, and when the cars would hit each other (or the wall) pieces would fly off (which you could put back on and do it again). I thought they were called SSTs, but I can't find any info on the net. (Sorry for the bad grammar, but I've had a bad week, and it's only Monday).