The Amilcar CC was a light sporting car produced by the French Amilcar company from 1922 to 1925. It was powered by a 903 cc four-cylinder, side-valve engine generating 18 bhp.

A flathead engine, also known as a sidevalve engine or valve-in-block engine, is an internal combustion engine with its poppet valves contained within the engine block, instead of in the cylinder head