The Jeep Grand Cherokee Trackhawk isn’t exactly short on power, with its 6,2-litre supercharged V8 heart sending a whopping 527 kW and 874 N.m (yip, that's more than the Lamborghini Urus) to all four corners via an eight-speed automatic transmission. But that hasn’t stopped the folks over at Hennessey Performance from taking this already rapid SUV to crazy new heights.

Yes, the US tuner offers not only a so-called HPE850 upgrade that hikes peak outputs to a considerable 635 kW and 1 146 N.m, but also a HPE1000 package results in frankly frightening figures of 755 kW and 1 314 N.m.

The Texas-based firm claims that with the HPE1000 package fitted, the Jeep will blast from standstill to 60 mph (so, about 97 km/h) in a mere 2,8 seconds and complete the quartermile (drag radial rear tyres) in 10,5 seconds at 214 km/h. For the record, the standard model completes the 0-100 km/h dash in a claimed 3,6 seconds and the quartermile in 11,6 seconds.

The most extreme package includes a 4,5-litre supercharger system (producing 14 psi boost) for the Hellcat engine, stainless steel long-tube headers, a high-flow supercharger bypass valve, upgraded high-flow fuel injectors, "Boost-A-Pump" factory fuel pump upgrade, an engine management upgrade and a high-flow air induction system.

Hennessey exterior badging and “HPE1000” badges are also included, along with a serial numbered plaque in the cabin signed by John Hennessey himself and one in the engine bay signed by the HPE technician who carried out the installation.

In October 2017, Jeep South Africa said that the standard Grand Cherokee Trackhawk would be launched locally at some point in 2018.