Here is a closer look at the first Muscle Machines Garage production samples. Muscle Machines Garage is a revamped, faster, track-ready version of The Original Muscle Machines. Where The Original Muscle Machines are very much for collectors, the new Garage line is for kids with a taste of Fast Cars and Nitro-fueled action. You’ve seen the 2-Lane Smash-Up track set, here are the new Muscle Machines Garage GUNNER and SCHOOL BUS models. These have fast-rolling wheels, plastic bodies, and a die-cast chassis to give them just enough weight to keep them rolling fast on the track but not too much to weigh them down!