Last year, Hennessey introduced the H850 Mustang Dark Horse, a supercharged muscle car with 850 horsepower and 650 lb-ft of torque. Now, the Texas-based tuner and hypercar manufacturer has ...

Fifth on the list is the legendary Koenigsegg Agera RS, which has a top speed of 446km/h. The hypercar runs on a 5.0-liter ...

Hennessey has come a long way from the early days of "making fast cars faster" as John Hennessey puts it. Now, it's a bona fide automaker, a wild tuner, and even has ambitions for ultra-low-volume ...

If the 755 horsepower the Chevrolet Corvette ZR1 has to offer isn’t enough for you, Hennessey already has a fix. The Hennessey HPE1200 supercharged engine upgrade for the ZR1 brings total output ...

While it isn’t officially the fastest production car in the world yet, the Hennessey Venom F5 has been shattering records and making headlines for a few years now. The hypercar is the 1,817 ...

Called the Hennessey Venom F5-M Roadster, this is no dulled-down version of the car that’s shortly to take aim at the 300mph barrier and beyond. Contrary to the usual wisdom that a manual can ...

It still wouldn't matter, though, because Guinness now stipulates that 30 examples are required to certify a car as a "production vehicle." Hennessey is only building 29 Venoms and has sold 11.

However, it’s not the only ZR1 with a four-digit horsepower figure, as a C7 model upgraded by Hennessey Performance ... The Bring a Trailer listing reveals the car has only ever been driven ...