Rolling chassis version of this thing https://www.youmagine.com/designs/dual-mode-windup-car. I designed this before the windup car and as such it utilizes the same gear train, wheels and other components. Since it is lighter and accelerates quicker than my previous car and rolling chassis designs, it outruns them all. Designed using Fusion 360, sliced using Cura 2.3.1, and printed on an Ultimaker 3 Extended in PLA.