Twin Mill

Twin Mill was Hot Wheels' first fully original design, sketched from scratch by Ira Gilford for the debut 1969 lineup rather than adapted from an existing car. Its doorless canopy lifts open from the top for entry, and its body is built around two large big-block engines mounted side by side. The casting proved influential enough to spawn direct successors, including Twin Mill II and Twin Mill III, and it remains one of the models most closely associated with the Hot Wheels brand.