Conceived by Hurst’s Jack “Doc” Watson as personal transportation for George Hurst, Olds turned his one-off Concept into a Supercar legend. Some of the brightest engineering minds in the industry created the only GM midsize car powered by a rules-bending 455-inch engine. In 1968, GM policy still limited the displacement of engines in midsize models to 400 cubic inches. However, corporate policymakers turned a blind eye to Oldsmobile’s rogue 455-inch Cutlass: 455 HURST-OLDS: LANSING’S EXECUTIVE E...