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2018 Jeep Grand Cherokee Trackhawk First Drive | Crazy. Good.

TAMWORTH, New Hampshire – We're tempted to tell you that the 2018 Jeep Grand Cherokee Trackhawk is ridiculous. It's borderline frightening to think that we now live in a world where anybody with the money and the gumption can stroll into the nearest Jeep dealership and place an order for a 707-horsepower Hemi-powered Grand Cherokee. Let's put this slice of history into perspective. The original Jeep, the one used by the military, boasted 60 horsepower from the Go Devil four-cylinder engine under the hood. The most powerful version of the muscle car-era 426-cubic-inch Hemi was factory-rated at 425 hp. And even if that legendary powerplant was underrated from the factory, the Grand Cherokee Trackhawk still obliterates it by a couple hundred horses. In an SUV. Seven-hundred-horsepower sport utility vehicle doesn't exactly roll off the tongue, does it? And conventional wisdom says it shouldn't. But we're here to tell you otherwise. After driving the Trackhawk in and around the streets of Portland, Maine, and taking it to Club Motorsports in New Hampshire, we're convinced that Jeep and SRT engineers have managed to defy physics and reason. The Trackhawk isn't just fast, it's also manageable. Subdued, even – at least when you want it to be. Put the hammer down, summon the nearly demonic power of supercharged combustion, and all hell breaks loose. But the tires don't. With launch control engaged and with the programmable engine speed properly chosen, the all-wheel-drive Trackhawk rockets to 60 miles per hour in just 3.5 seconds, over and over and over again. No drama, no wheelspin, just g-force, pressing you and four close friends into the backs of your seats. It's addictive, and the only penalty is single-digit fuel mileage. But we'll wager a guess that anyone shopping for a Trackhawk isn't much concerned about its drinking problem. The only proper way to experience the Trackhawk's acceleration is from inside. But, to give you an idea of its speed and power, check out the videos below. Stick around for a walkaround both inside and out, and for a look under the hood. Jeep had to make a few small changes to the well-known 6.2-liter supercharged Hellcat V8 engine to shoehorn it under the hood of a Grand Cherokee. The oil pan is reshaped and baffled, the intercooler is modified, and the exhaust manifolds are new. The result is a reduction in torque from 650 pound-feet in Dodge Hellcat models to 645 in the Jeep, but we wouldn't worry about that.

2018 Jeep Grand Cherokee TrackHawk shows off its hellish supercharged V8

We've seen the spy shots of this thing, the 2018 Jeep Grand Cherokee TrackHawk, before. But only from the outside. The external changes are plenty telling, but there was always the slight chance we were looking only at an extra-hot SRT version, not a full-blown (pun intended) TrackHawk with a Hellcat motor. Until the hood goes up, there's no telling what we're really looking at. Well, seeing is believing. We have been looking at TrackHawks all along. And Mike Manley, Jeep's CEO, wasn't selling the world a bill of goods when he said to expect the thing "by the end of 2017". As you can clearly see in the slightly noisy engine shot, that's a supercharger parked on top of FCA's 6.2-liter V8, just like in the Charger and Challenger Hell-twins. Chances are it'll make the same power as it does in those two – 707 hp, in case you're just waking up from cryo-stasis and aren't aware of the most famous power output figure on the planet. There are some differences between this Grand Cherokee and ones we've previously pegged as TrackHawks. The fog lights in the lower grille vents are gone, and the rear fascia gets a bit more aggressive. Perhaps these will be the external details that separate the TrailHawk from the lowly non-supercharged SRT versions. We've also been hearing about quad exhaust tips, but haven't seen them on a prototype yet. If Jeep wants to get this thing out on the road by the end of the year, we're likely to see it coming to an auto show soon. Keep your eyes peeled. Related Video:

Watch the 2018 Jeep Grand Cherokee Hellcat blast off

It's all but official. Jeep will produce a Hellcat version of the Grand Cherokee with crazy horsepower. We mean crazy. Today, our spy shooters have captured video footage of this demonic creation. It's pretty short, but you can see a dark Grand Cherokee launch with vigor and then brake hard to a halt. We think we detect the whine of a supercharger amid the commotion. Jeep boss Mike Manley has said on video that the JGC Hellcat will arrive before the end of next year. Specs aren't known, but it seems likely that the Jeep Hellcat will share the blown 6.2-liter V8 used in the Charger and Challenger Hellcats. We've also heard rumors the Trackhawk name could be used for this vehicle. In those applications, the beastly Hemi pumps out 707 manic horsepower. Really, why wouldn't you do this? Jeep sales surged 22 percent around the world last year to 1.2 million, the brand's best year ever. Clearly, Jeep decided it was time to add an extreme performance vehicle. Jeep already sells an SRT model that pumps out 475 hp, so adding a top-end Hellcat seems logical. And a Hell of a lot of fun. Related Video: