American car firm Hennessey, famous for its Venom hypercar and thundering high-performance modification projects, has turned its attention to the Dodge Ram to produce this: the Mammoth 1000 6x6 TR ...

Hennessey Performance's HPE1000 package for the 2016 Chevy Camaro SS adds a supercharged and strokes the engine to 6.8 liters to make 1,000 hp. If the 455-horsepower 2016 Chevrolet Camaro SS isn't ...

This means there’s meaty 558bhp and 911Nm of torque on offer - that’s a little way off the Mammoth 6x6’s 1,012bhp, however. There is a sensible side to Hennessey’s latest crazy super truck.

Meet the Mammoth 1000 ... Hennessey has also given it electronic fold-out steps for improved ingress and egress, fresh exterior badges, front and rear leveling kit, a serial number plaque in the ...

Texas-based engine maker Hennessey Performance Engineering has come up with an SUV that's maybe just a little over the top. Based on a Ram TRX pickup truck, 7-passenger Mammoth 1000 features a ...

Hennessey Performance Engineering is taking engine output to ludicrous levels with its 1,000-horsepower tune for the 2016 Cadillac CTS-V. The key to the upgrade is dropping he V8's supercharger ...