SU Carburetters (named for Skinners Union, the company that produced them) were a brand of carburetter usually of the sidedraught type but downdraught variants were used on some pre-war cars. They were widely used in British (Austin, Morris, Jaguar, Triumph, MG) and Swedish (Volvo, Saab 99) automobiles for much of the twentieth century. Originally designed and patented by George Herbert Skinner in 1905, they remained on production cars through to 1995 in the Mini and the Maestro by which time they had become part of the Rover Group. They are now manufactured by Burlen Fuel Systems Limited mainly for the classic car market. Hitachi also built carburetters based on the SU design which were used on the Datsun 240Z, Datsun 260Z and other Datsun Cars. While these appear the same, they differ to