It may look like a Grand Cherokee SRT, but this prototype has some Hellcat upgrades denoting it's the new range topper with as much as 707 hp.

The near-production prototype was caught on camera roaming the streets of Detroit and carrying disguise on the front end to mask the cosmetic tweaks. Hiding behind the black camouflage is an extra vent located below the grille to provide extra cooling for the beefy engine lurking underneath the muscular hood.

The test vehicle was equipped with a set of Brembo brakes sourced from the Dodge Hellcat models and inside the cabin there was a roll cage noticeable at the 2:30 mark, but don’t expect that on the production model. A recent batch of spy images has revealed the Grand Cherokee Trackhawk will also benefit from an upgraded suspension with additional bracing to cope with the added muscle provided by the engine.

Speaking of which, the flagship Grand Cherokee will use a supercharged 6.2-liter V8 unit borrowed from the Hellcats where it delivers a mighty 707 horsepower (527 kilowatts) and 650 pound-feet (880 newton meters). However, it’s not known at this point whether the high-performance SUV will be available with the full power since it might be capped at a lower output because of the AWD’s limitations.

We already know how fast it’s going to be, with Jeep revealing some time ago the sprint from to 60 mph (96 kph) will take 3.5 seconds, so it will be 1.1 seconds quicker faster than the Grand Cherokee SRT. While details about the top speed are not available at this point, it wouldn’t be too far-fetched to assume the Trackhawk will trump the SRT’s 157 mph (253 kph).

Jeep has already announced the new range topper will go on sale in July 2017, so there’s a distinct possibility a full reveal will occur some months before, possibly in January at NAIAS in Detroit. When it will arrive, it’s going to command a serious premium over the $65,495 SRT and will likely be priced at somewhere in the region of $80,000.

Attached below is a gallery with another prototype our spies caught on camera at the end of September.

via Motor Authority

Gallery: 2018 Jeep Grand Cherokee Trackhawk spy photos