2014 Jeep Grand Cherokee Laredo on 2040-cars

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Build a Jeep Gladiator 392 next? The Hummer H3T Alpha blazed the trail

The 2021 Wrangler Rubicon 392 will combine the go-anywhere capability of a Jeep's iconic off-roader with the grunt of a V8 for the first time in decades. As cool as that is, we can't help but think Jeep is missing out on a huge opportunity to pair that 470-horsepower, 6.4-liter Hemi V8 with the Wrangler's pickup cousin, the Jeep Gladiator, in the form of a Mojave 392.  Autoblog took part in a media Q&A session with Jeep ahead of the Rubicon 392's announcement in which the company's product higher-ups said that there are currently no official plans to build a 392 variant of the Gladiator pickup. But whether or not Jeep has plans, it certainly has precedent, and from our perspective, a market.  Rewind to 2008, better known as one of the worst possible years to introduce a gas-guzzling, V8-powered pickup truck. Enter the 2009 Hummer H3T Alpha, the first variant of Hummer's midsize truck/SUV hybrid to be offered with a 5.3-liter V8. The 300-horsepower small-block was an upgrade to the sturdy but relatively uninspiring 3.7-liter inline-5 that the H3 lineup had inherited from its midsize pickup platform mates.  As our Jeremy Korzeniewski noted in the Rubicon 392's introductory piece, an open-top Jeep has not been offered with an optional V8 for as long as the "Wrangler" nameplate has existed. The last Jeep 4x4 to do so was still a CJ, or civilian Jeep, and the 304 cubic-inch engine came from American Motors Corporation. Incidentally, this generation of the Wrangler is also the first to be offered in a pickup variant. Cue the beard-stroking.  Now, frankly, it's not even remotely fair to compare the H3T's powertrain offerings to the decade-newer Gladiator's, but the Hummer actually boasts a few advantages over Jeep's modern pickup. While most of the Jeep's off-road specs give it an edge, the Gladiator doesn't come close to the H3T's 30.1-degree departure angle, for instance. And in more practical terms, the stubbier H3T has other maneuverability advantages. The Gladiator has 3" of wheelbase and 5" of overall length on the H3T, and a 22.4-foot turning radius to show for it. The Hummer's? Just 18.5'.

Watch this 650-hp Hennessey Jeep Grand Cherokee go from 0-60 in 3.9 seconds

Hennessey Performance Engineering has created an HPE650 package for the Jeep Grand Cherokee SRT fitted with the 6.4-liter Hemi engine. When it leaves the showroom floor it has 470 horsepower and gets from 0-60 miles per hour in 4.8 seconds. When it leaves Hennessey's garage floor after the upgrade it has 650 horsepower - 530 hp at the wheels, according to Hennessey - and gets to 60 mph in 3.9 seconds on its way to running the quarter-mile in 12.6 seconds.
There's more than just a Roots-type supercharger bolt-on, with ported cylinder heads and high-flow headers among the many changes made to the engine. You can watch this pre-2014 facelift silver model prove its spec sheet on the drag strip in the video below.

Jeep CEO a fan of pickup redux

The idea of a Jeep pickup is a hardly a new concept. After all, putting a bed on the company's rugged off-roaders goes back to the '40s, not to mention the more recent Cherokee-based Comanche. There's a very slim chance that a truck could return to the lineup down the line if brand CEO Mike Manley gets his wish. "I remain a big fan of a Jeep pickup. I think we have history that says it belongs in our portfolio," Manley said to The Detroit News. However, there's no need to get any hopes up soon, because a truck doesn't get any mention in the brand's five-year plan. That puts the earliest possible introduction around 2019. Even Manley is tempering expectations. "At this moment and time, I have higher priorities. That doesn't mean to say that we don't work on it, we're not looking at it," he said to The Detroit News. The most likely candidate to support a future Jeep truck is the next-gen Wrangler, according to The News. The rest of FCA's pickups and SUVs are running at capacity, which makes slipping in another variant difficult. However, the future Wrangler is heavily rumored to get an expanded production facility in Toledo, OH, which could make things possible. Anonymous FCA insiders confirmed to Autoblog that the next-gen Wrangler would be offered with a 3.0-liter EcoDiesel V6 and eight-speed automatic. It's also reportedly using solid axles at the front and rear, a fixed windshield and an aluminum body. That could make for a very fun and practical off-roader. If reading all of this speculation gives you a twinge of deja vu, it should. After the Jeep Gladiator concept (pictured above), there were years of speculation about the brand bringing the pickup back. Even then the plan was for a compact truck to tackle that hole in the segment. It was even believed that the project had a green light for production seemingly with Sergio Marchionne's blessing. Then things were pushed back, and last year, the idea was officially quashed. Related Video: