ALVIS SPEED TWENTY
First introduced in 1920, all Alvis cars made in the early 1920s were designed around a four-cylinder engine. They proved to be a popular sports car but GT Smith-Clarke, the chief design engineer was looking for better performance so in 1927 he introduced an 1870cc six-cylinder overhead valve engine and it was this engine and all future enlarged versions of this engine which powered most of the cars Alvis made right up to the outbreak of World War II in 1939. To increase performance, over time, the original 1870cc engine… Read more