 The version built for the stage production holds the record for the most expensive stage prop ever used.For the 1968 film, six cars were created, including a fully functional road-going car with UK registration GEN 11.This car was designed by the film's production designer, Ken Adam, and cartoonist and sculptor Frederick Rowland Emett, built by Alan Mann Racing in Hertfordshire in 1967, fitted with a Ford 3000 V6 engine and automatic transmission and allocated a genuine UK registration.