Lamborghini Miura manual indicating bigger intake valves in English size (but correct size in metric). The intake and exhaust valves in all 4 liter Lamborghini V12 remained the same throughout all models. This intake size misprint carried forward into Espada 400GT and Countach LP 400/LP 400S owners manuals as well. In 1970, Lamborghini development driver Bob Wallace created a test mule that would conform to the FIA's Appendix J racing regulations. The car was appropriately named the Miura Jota (the pronunciation of the letter 'J' in Spanish). Wallace made extensive modifications to the standard Miura chassis and engine. Weight reductions included replacing
Sunbeam Motor Car Company the LSR in a new 4-litre V12 Sunbeam racer originally named Ladybird and later renamed Tiger. Coatalen decided to re-enter the LSR field himself, building the truly gigantic Sunbeam 1000HP powered by two Matabele engines. On 29 March 1927 the car captured the speed record at . The car is now at the National Motor Museum, Beaulieu, UK. A later land speed record attempt, with the 1930 Silver Bullet, failed to achieve either records, or the hoped-for advances in aero engines. It is now almost forgotten. Rootes was an early proponent of badge engineering, building a single mass-produced chassis and