Including this is kind of cheating because for a long time the only V8 bikes were home-built jobs like the rather agricultural drag bikes of E.J.Potter, the “Michigan Mad Man” (R.I.P.). But now Boss Hoss makes dozens of them a year, each with a full-sized automotive V8, and they are only really slightly better engineered than the ones E.J. built. At least the modern V8 bikes have the benefit of modern disc brakes, hydraulically dampened suspension, and a clutch; 3 things most of Potter’s bikes did without.