Based in Houston, Texas, Hennessey (not to be confused with the cognac, Hennessy) is a tuning house that works on sports and super cars. They modify vehicles for brands including Cadillac, Jaguar and Ford and are most famous for developing the Hennessey Venom GT, a modified Lotus Exige, the fastest street legal car in the world.  

2017 Hennessey Venom GT

 The fastest accelerating production car in the world.