In Japan Mini 4WD racing is quite popular. It's similar to slot car racing in the US, but without the slotted tracks and remote controls. Cars are known for flying off the track, and hitting the walls, thus it is very important to design cars that can handle all sorts of situations. This is why 3D printing has suddenly become such a great tool. Last month there was a big Mini 4WD race where i.materialise awarded 3D printed trophies to the winners. Contestant were to modify their cars using 3D printing and/or laser cutters. Some of the cars turned out quite nicely, and even Stratasys was on hand to participate. Read and see more at http://3dprint.com/15158/3d-printed-mini-4wd/