Hennessey Performance introduces the Demon 1700, a twin-turbo beast with over 1,700 HP and sub-8-second quarter-mile times.

The Dodge Challenger SRT Demon 170 has been out of production since 2023, but remains the most powerful muscle car ...

Hennessey turns the already wild Dodge Demon 1700 into a twin-turbo 1,700-hp beast that might be the world’s fastest car down ...

Cadillac has given the Escalade a mid-cycle refresh this year, endowing the fifth-generation model and flagship SUV with a new face at the top of the luxury marque's range. The facelifted models ...

Hennessey Performance Engineer has shared a video showing the twin-turbocharged V-8 in the Demon 1700 making 1,700 hp in dyno ...

Writing for the Wall Street Journal, Matthew Hennessey argues to the contrary, that explicit financial incentive precludes ...

Valencia marketing firm Hennessey Digital, specializing in services for law firms, has been acquired by Herringbone Digital, ...

The Dodge Demon 170 will be upgraded to run a 7.9-sec quarter-mile at 180 mph; Hennessey Special Operations will only make a ...

This truck spent quite some time on the dyno. It went through tuning twice because the owner kept wanting more. Is 800 ...

Hennessey has unveiled an even more hare-brained version of the Venom F5, which it's calling the Evolution. According to Hennessey, the Venom F5 Evolution adds 214 horsepower over the original, ...

Jevera Hennessey joined Wiggin and Dana as a partner in its private client services department in Greenwich, Conn., the firm ...

Hennessey's latest over-the-top Mustang, the Super Venom, is based on the Mustang GT and Dark Horse models and limited to 91 examples in total. The tuner claims a 10.9-second quarter-mile time, ...