Lamborghini Miura a less restrictive exhaust system. This single example was eventually sold to a private buyer after extensive testing. In April 1971, the car crashed on the yet-unopened ring road around the city of Brescia, and burned to the ground. It was once widely believed that the Jota had the chassis number of #5084 (a number well out of sequence for the date in question), it has been clarified by Miura expert Joe Sackey in his book The Lamborghini Miura Bible that this is not the case, and that #5084 is in fact a factory modified SV to SVJ spec. A
Production car speed record speed for both runs is taken as the car's top speed. In instances where the top speed has been determined by removing the limiter, the test met these requirements, and the car is sold with the limiter on then the limited speed is accepted as meeting this requirement. For the "McLaren F1" the estimation by "Car and Driver" about the speed at the rev-limiter is used. Comparing claimed speeds of the fastest production cars in the world, especially in historical cases, is difficult as there is no standardized method for determining the top speed and no central authority to verify