The Bugatti Veyron 16.4 is currently the fastest, most powerful, and most expensive street-legal full production car in the world , with a proven top speed of over 400 km/h (407.9 km/h or 253.2 mph), Bugatti Veyron 16.4 Manufacturer Bugatti Automobiles SAS Production 2006–300 cars Predecessor Bugatti EB110 Class Supercar Body