The Bugatti Veyron Super Sport reached a Guinness World Records-certified top speed of 431 km/h or 268 mph.
However, as Guinness notes, the cars shipped to customers are restricted to 258 mph — to protect the tires, which don’t hold up well at the higher speeds.
The Veyron Super Sport has four enlarged turbochargers and bigger intercoolers; the 16-cylinder engine has a total of 1,200 horsepower and 1,106 lb.-ft. of torque.
The SSC Ultimate Aero held the previous Guinness record of 255.83 mph. It is the fastest road car in production
The Bugatti Veyron Super Sport, depending on production details and foreign-exchange rates, will cost between $2.4 to $2.6 million.