About this 3D model

Jack of all trades 3D printed RC car 4 wheel drive with metal diffs Top speed +85km/h on road Google docs: https://docs.google.com/document/d/1V-GrFOmn_nnJBDjQRQCdPkd5S-rc3ZkLpLimP1kR8IQ/edit?usp=sharing