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.