Hennessey Performance Engineering
Hennessey Just Gave the Ford Mustang Shelby GT500 a Beastly 1,204 Horses
The modified muscle car has 58 percent more horsepower than the factory version.

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The Hennessey Performance Engineering Venom 1200 Mustang GT500 in Photos
The modified muscle car has 58 percent more horsepower than the factory version.
Watch a Porsche 911 Turbo S ‘Sleigh’ the Track With a Christmas Tree on Top
Hennessey has been strapping the holiday decoration to high-performance vehicles since 2017.
Hennessey Is Building the World’s First Electric 6-Wheel Hypercar—With a Bonkers 2,400 HP
Codenamed Project Deep Space, the all-electric grand tourer may be in production as soon as 2026.
Watch Hennessey’s Venom F5 Hit 200 MPH Using Only Half Its Power
Finishing up the first stage of testing, Hennessey expects the hypercar to exceed 311 mph when all 1,817 horses are made available.
Hennessey Transformed the Already-Beastly 2021 Ram 1500 TRX Into a 1,012 HP Monster
The tuner plans to offer 200 examples of the truck, which is claimed to cover zero to 60 mph in 3.2 seconds.
John Hennessey on His All-New 1,817 HP Venom F5 Hypercar—and Going for 310 MPH
The founder of Hennessey Performance on the clean-sheet model, and why it’s been the biggest challenge of his career.
Hennessey’s New Souped-Up VelociRaptor V8 Bronco Has 758 HP Under the Hood
The custom build more than doubles the SUV’s horsepower.
Hennessey’s New 1,200 HP Mammoth 6X6 Will Be the Tuner’s Largest, Most Powerful Truck
Only three examples of the aptly named Mammoth will be made, each priced at $500,000.