Introduced in 1981, the Biturbo is a car built by Maserati until 1994. Available as both a 2 door or 4 door, the Biturbo was famous for the twin turbo V6 engine used throughout production. Various engine and vehicle specifications were available during the Biturbo's lifespan, including open top versions, but all based on the original V6 engine. The Biturbo saw more than 38,000 cars produced in all it's various guises.