Some of the fastest production cars in the world as of 2015 are the Hennessey Venom GT, Bugatti Veyron, SSC Ultimate Aero and McLaren F1. The Venom GT holds the current top production vehicle speed record of 270 mph, though this is only a fraction of the current land speed record of 763 mph set in 1997 by the specially-designed Thrust SSC jet-powered car.
The McLaren F1 has the distinction of being the fastest production car in the world for over a decade, as its record of 241 mph stood from 1993 until finally bested by the Bugatti Veyron in 2005. It remains the world's fastest naturally aspirated vehicle, as all subsequent record holders have used forced induction systems to increase engine power. The F1's speed comes from a combination of a powerful BMW V-12 engine and lightweight construction, including the use of gold foil as a heat reflector in the engine compartment.
The Hennessey Venom GT is a highly modified version of the lightweight Lotus Exige sports car that is extended and rebuilt by Hennessey Performance Engineering. The standard Exige's four-cylinder, 190-horsepower engine is replaced with a twin-turbo V-8 producing over 1,000 horsepower. The combination of a very light chassis with a powerful engine allows the Venom GT to reach its record speeds and to accelerate to 200 mph in only 14.51 seconds, making among the quickest cars in the world as well as the fastest overall.