Lamborghini Miura built at the Lamborghini factory between 1983 and 1987 from an unused Miura S chassis. This was made for Jean Claude Mimran, one of the Mimran brothers, the then owner of Lamborghini. Most experts do not recognize this as an "official" SVJ due to it being converted (albeit done by the factory) long after the Miura went out of production. Further Miuras were subsequently upgraded to SVJ specifications (trying to imitate the real factory SVJs) by various garages of Switzerland, USA and Japan. Another one-off, the Miura Roadster (actually more of a targa-model, but without any removable roof) was built
V12 engine is more compact. In 1997, Toyota equipped their Century Limousine with a 5.0 L DOHC V12 (model # 1GZ-FE), making it the first and only Japanese production passenger car so equipped. TVR made and tested a 7.7 L V12 called the Speed Twelve, but the project ended. The only British marques currently using a V12 configuration are Aston Martin — whose Cosworth-developed engine was authorized during the company's ownership by Ford Motor Company — and Rolls-Royce. In 2009, China FAW Group equipped their Hongqi HQE with a 6.0 L DOHC V12 (model # CA12VG), making it the first and only