Typical bicycle geometry is just tire limited in it's high speed cornering performance; a 4-wheel car with a center of mass relative to size anywhere near as hi

Typical bicycle geometry is just tire limited in it's high speed cornering performance; a 4-wheel car with a center of mass relative to size anywhere near as high would just fall over before really hitting tire limits. Coasting down switch-backs at whatever speed the car traffic on the road feels like, and not giving any car incentive to overtake by matching the speeds.