One of the smallest production straight-sixes was found in the Benelli 750 Sei motorcycle, displacing . Honda and Mike Hailwood raced in the 1960s with the RC166 six-cylinder, 24-valve motorcycle engine. Pre-World War II engines could be quite large by modern standards – such as the Rolls Royce Silver Ghost's engine and the of the 1910s Peerless, Pierce, and Fageol. In 1910, the Oldsmobile Limited was introduced with a T-head engine that displaced , and in 1911 the displacement was increased to . In 1911 the Renault 40CV installed a engine that was upgraded in 1920 to and remained in production until 1928.