You might be wondering why it took four years for the first customer example of the Centodieci to be completed when the car is based on an existing model. That’s because Bugatti puts its coach-built cars through the same rigirous testing and evaluation program as its regular production cars. One of the toughest tests is a high-speed endurance run at Italy’s Nardo track. Here, a prototype is driven more than 31,000 miles, with stops being made only to refuel, check the technicals, and swap drivers.