John Hennessey's namesake company has proved that fast cars are better when they go even faster and these five models took ...

Hennessey’s latest creation is a riff on the Mustang Dark Horse and Mustang GT called the Super Venom. Maxed out with 850 bhp ...

John Hennessey says he is working on packages to make all of those cars even higher-po. From the Mustang to the Viper and Veyron, Hennessey Performance has spread its abilities across the ...

Hennessey Performance is here. This modified Mustang is called the Hennessey Super Venom, and it is a celebration of the ...

Built around the company's thousand-horsepower twin-turbocharged Dodge Viper ... package weighing in around 2700 lbs. Carry the zeros and we're looking at 2.7 lbs per hp, giving the special ...

Texas-based tuning company Hennessey, also responsible for the wild Venom GT, has revealed its tuning program for the 2013 SRT Viper – called the Venom 700R. Power and torque from the 8.4-litre ...

The loan power upgrade included with the Mammoth package is ... which hark back to Hennessey’s early success with Chrysler’s ...

Prices shown are the prices you can expect to pay for a 2012 Hennessey Dodge Viper Venom 1200 Twin Turbo across different levels of condition. Edit options.

Prices shown are the prices you can expect to pay for a 2011 Hennessey Dodge Viper Venom 1000 Twin Turbo across different levels of condition. Edit options.