The Ferrari Testarossa (Type F110) is a 12-cylinder mid-engine sports car manufactured by Ferrari, which went into production in 1984 as the successor to the Ferrari BB 512i. The Pininfarina-designed car was originally produced from 1984 to 1991, with some late production samples falling into the 1992 model year. The great majority of Testarossa's produced by the factory were built as coupes, although a handful were made with a convertible body style and delivered to special clients for Ferrari, vehicles that today command a significant premium. Because of the intense interest in this small number of convertibles, factory coupes have been converted to convertibles by third-party coach builders and customizers. The Testarossa is considered one of the most mass-produced Ferrari models. There were two model revisions following the end of Testarossa production called the 512 TR and F512 M.