The E-Type Series 3 was introduced in 1971, with a new 5.3 L Jaguar V12 engine, uprated brakes and standard power steering. An automatic transmission, wire wheels and air conditioning were available options. The V12 was equipped with four Zenith carburettors, and as introduced produced a claimed 203 kW (272 hp), more torque, and a 0–60 mph acceleration of less than seven seconds. The short wheelbase FHC body style was discontinued, with the Series 3 available only as a convertible and 2+2 coupé. Fifty Series 3 E-Types were constructed as end of model commemorative cars. They featured black exteriors, cinnamon upholstery and commemorative plaques on the glove box (apart from a single green car that Jaguar painted for a long-standing customer). The final production E-Type OTS Roadster was built in June 1974.