As of 2014, the Hennessey Venom GT is the fastest American car. It set a speed record on the 3.2-mile space shuttle landing strip at Cape Canaveral, Florida, by reaching a top speed of 270.49 miles per hour, which is roughly 400 feet per second. This GPS-verified run surpassed the previous record that was set by the Bugatti Veyron Super Sport of 268.86 miles per hour; Bugatti's record was set at Germany's Volkswagen test track.
The Hennessey Venom is built by John Hennessey from Texas. It features a 1,244-horsepower engine that is part Lotus Exige and part 7.0-liter Corvette ZR-1. A pair of turbochargers tops off the build. The Venom GT isn't built for the average car shopper, however, because it is priced at $1.2 million on the low end. Hennessey has plans to build only 29 Venom GTs.
Although the legitimacy of the speed record for the Venom is undeniable, it is not an official record because it has not been certified by Guinness. To achieve the Guinness record, the Venom will need to repeat the record in back-to-back runs, twice, and the runs must be in opposite directions. With plans to build just 29 Venom GT cars, this leaves Hennessey short one car needed to be considered a "production" car under Guinness guidelines.