Anyone with an interest in fast, street-legal cars is probably familiar with the Bugatti Veyron 16.4 Super Sport. This car achieved the landspeed record for production vehicles in 2010 when it reached a top speed of 269.8 mph at Volkswagen's Ehra-Lessien testing track in Germany. That day, the car's average speed was 268 mph, keeping it well within supercar status. Wondering what the 16.4 stands for in the Veyron Super Sport's name? It's derived from the fact that the car features a 16-cylinder engine with quad-turbochargers. This 8-liter W16 powertrain pumps out up to 1,200 hp, pairing with a 7-speed dual-clutch gear shifter to power all four wheels. Surprisingly, the engine block isn't much larger than a V12, and it's constructed of lightweight materials to boot. Aside from record-breaking speed, the Bugatti Veyron 16.4 Super Sport has some unique qualities. For instance, it uses NACA ducts mounted in the roof to improve airflow and ventilation, while a rear double diffuser makes for better aerodynamics. Everything from the specialized fuel injection pumps to the custom tires and high-performance braking system was designed to launch this car to unfathomable speed.