Road trip! These fun freewheeling 5-inch MOD MACHINES system vehicles each feature multiple accessories for hours of creative customization including tires, tank treads, light racks and more! Kids can choose an ATV, UTV or 4x4 vehicle for their exciting all-terrain adventures, each sold separately. Each vehicle in the assortment is compatible with the MOD MACHINES DX14 SEMI-HAULER (sold separately) removable motorized engine so boys can really power up the excitement!