V12 engine for the postwar market in Europe, production of V12-engined-cars was very limited until the 1960s. Ferrari has traditionally reserved their top V12 engine for their top-of-the line luxury sports coupes since 1949. Ferrari's closest rival, Lamborghini has also used the V12 configuration for many of its road cars since the company's inception in 1963. In 1972, Jaguar introduced the XJ12, equipped with a 5.3 litre V12, which continued (after revisions in 1993) until the 1996 model year, after which the marque discontinued the twelve-cylinder engine. BMW returned to V12 designs for its 7 Series sedan in model year 1986, forcing
Production car speed record of Bugatti's record of Fastest production car achieved by the Veyron 16.4 Super Sport. The focus of the review was with respect to what may constitute a modification to a car's standard specification. Having evaluated all the necessary information, Guinness World Records is now satisfied that a change to the speed limiter does not alter the fundamental design of the car or its engine." Some cars were not considered to be the fastest production vehicles, for various reasons. Here is a list of some well known cars that have not been able to meet standards needed to be the fastest