Did you know the largest engine ever in a production car was a mind-blowing 13.5-liter straight-six? The Pierce-Arrow Model 66 from the 1910s packed an engine so huge, the car was basically built around it. It only made about 60 horsepower, but the torque was wild and it could cruise like a boss. Forget Bugatti or Cadillac—nothing comes close to this beast’s sheer size. Massive engines like this are gone for good, but the Model 66 is still the king of displacement! #Cars #CarHistory #AutoFacts