The Fairthorpe Electron Mk III, a British microcar from the 1960s, used a motorcycle-derived two-stroke engine that was so vibration-prone that the entire powertrain sat on rubber mounts capable of oscillating at frequencies that would resonate with the driver’s skeletal system during sustained acceleration, essentially tuning the car’s vibration profile to match human bone resonance frequencies in a way that made driving at certain RPM ranges physically painful despite the engine producing minimal actual power.
Car Fact #144 — November 6, 2026
