The Mammoth 900 is one crazy pickup.
Hennessey's 900-horsepower TRX pickup is not to be taken lightly. It wasn't long ago that this beast easily thrashed the stock Ram 1500 TRX in a drag race. And that standard TRX is already a heck of a truck with 702 hp generated by its 6.2-liter V8 supercharged Hellcat engine. Well, Hennessey has just lined up the Mammoth 900 for another drag race, and this time it's against something a lot different, namely, the Chevrolet Camaro ZL1 1LE. Although designed for straight-line blasts, the stock Chevy is down on power at 650 horses and has to rely on rear-wheel-drive traction alone.
By contrast, the Mammoth 900 is four-wheel drive but obviously weighs significantly more than the Camaro coupe (about 2,600 pounds, in fact). In the first race, the truck flew off the line and got an immediate head start over the Camaro, although its driver did admit that he may have jumped off the line a tad too early. However, another launch made it clear that the TRX came off the line more quickly with the Camaro gradually catching up as the speeds increased. While the Camaro stayed quite level at takeoff, the heavier TRX visibly lifted its nose as it muscled through its obvious aerodynamic deficit.
Despite the Mammoth 900's sensational performance, it's not even the maddest TRX that will be unleashed by Hennessey. Just days ago, the tuner said it would be stuffing a Hellephant engine into the Ram 1500 TRX. This 7.0-liter supercharged V8 engine is capable of producing up to 1,200 hp, so it should be even quicker than the Mammoth 900 tested here.
The company will be putting the Hellephant power plant into a Dodge Durango SRT Hellcat as well, which will surely be the fastest seven-seater SUV on the planet. Camaro drivers - as well as owners of quick Mustangs and Challengers - are advised to look the other way if they spot one of these trucks with a Hennessey sticker.