Jeep says the Grand Cherokee Trackhawk is the fastest SUV ever

The quick SUV sits on 20-inch Titanium-coloured alloys wheels wrapped around yellow brake calipers, but for those wanting a harder edge to performance there's optional forged alloys that cut an extra 5.5kg from unsprung mass.

The supercharged V8 is the same block powering the SRT Hellcat versions of the Dodge Challenger and Charger, but put out 6 Nm less here.

The engine is nearly exactly the same as the one powering Challenger and Charger Hellcats, from boost pressure (11.6 psi) and max air flow rate (30,000 liters per minute) to peak in-cylinder pressures (1,600 psi). The Dodge Challenger is the most powerful muscle vehicle according to Fiat Chrysler Automobiles, or FCA, which is the parent company of both Jeep and Dodge. An eight-speed automatic transmission with paddle shifters is standard, as is 4WD. The housing is redesigned relative to the one in the SRT8 with revised ring-and-pinion tooth geometry and a new four-point axle mounting scheme to better distribute the enormous forces attempting to twist it away from the chassis. In Sport, shift times are reduced by 50% versus Auto, and in Track it's 68% faster, to 160 milliseconds. This gives the SUV a lower center of gravity and improves handling. Key changes include adaptive bi-xenon headlamps framed by black surrounds, custom air intakes in place of the conventional fog lamps, a hood with functional dual air extractors, color-keyed fender flares and side sills, a Gloss Black rear valence that houses dual Black Chrome exhaust tips along with the requisite "Supercharged" and "Trackhawk" badges. Taking care of safety is a set of 15.75-inch (400 millimeter) Brembo brakes in front and 13.78-inch (350 mm) rotors in the rear, with the company looking towards a 60 miles per hour (97 kph) stop in 114 feet.

The Brembo brakes here are the largest standard front brakes ever offered on a Jeep.

The Jeep Grand Cherokee has just received a major horsepower upgrade. It includes a forged steel crank and forged pistons. Well, they were real, and here's everything we now know about the Hellcat-powered 2018 Jeep Grand Cherokee Trackhawk.

Luxury and technology are readily available, as well.

The driver-focused instrument panel center stack features an 8.4-inch Uconnect touchscreen that's Android Auto and Apple CarPlay friendly.

The crossover will seat up to seven people, and it is reportedly based on the CUSW platform that is also used by the Cherokee.

Sound freaks have a choice of two audio systems, one of which is an 825-watt Harman Kardon high-performance audio system with 19-speakers and two subwoofers (no details were provided for the other).

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