Lamborghini Miura recreation of the Jota was later undertaken by Chris Lawrence of Wymondham Engineering for Lamborghini owner Piet Pulford from the United Kingdom on chassis #3033. There are six examples of the Miura SV/J known to be built by the factory while the Miura was still in production, one was built new (chassis #5090) and five were converted from existing SVs (chassis #4934, #4860, #4892, #4990 & #5084) One of these cars, chassis #4934, was built for the Shah of Iran Mohammad Reza Pahlavi. The Shah stored this car under armed guard with another SV in Royal Palace in Tehran. After
V12 engine each piston can be smaller, lighter, and with a shorter stroke. Exhaust system tuning is also much more difficult on a crossplane V8 than a V12, so racing cars with V8 engines often use a complicated "bundle of snakes" exhaust system, or a flat-plane crankshaft which causes severe engine vibration and noise. This is not important in a race car if all-out performance is the only goal. Since cost and fuel economy are usually important even in luxury and racing cars, the V12 has been largely phased out in favor of engines with fewer cylinders. Engines are often designed around