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Submit your questions for Autoblog Podcast #319 LIVE!

We record Autoblog Podcast #319 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #319
Jeep checks out the Grand Wagoneer at Wagonmaster

2015 Easter Jeep Safari Concepts First Drive

Imagine if once a year your grandmother made a chocolate cake. Not a chocolate cake, that chocolate cake. Blow-your-mind chocolate cake. But she won't ever let you have any – you can only have the spatula and whatever's left over in the mixing bowl. And you don't care. You look forward to that spatula and bowl every year because – "Gadzooks!" – that is some stupendous cake. For us, that cake is the Easter Jeep Safari. An annual pilgrimage to Moab, Utah for a taste of what Fiat-Chrysler's off-road brand has cooked up in its Design Dome. "No, you can't have any," the company tells us, "but you can taste it here, then dream about it until next Easter." In Detroit, Jeep gave us a close look at the seven concepts it built for this year's 49th annual event. Then it went a step further and took those show cars to Mill Canyon, UT, to crawl the red rocks in Jeep's natural habitat. After all, the company calls Moab, "Our home away from home." And it's not true that we never get more than a taste of Jeep's conceptual goodness – 2011's JK8 pickup conversion kit is a slice of Safari creation we can now take home, for instance, as are the hood decals that adorned two of the concepts we drove this year. Pietro Gorlier, President and CEO of Mopar, told us that the evolution of Jeep Performance Parts came from listening to journalists and customers in his first year on the job in 2010. So there's that. But still, we want more cake. Like a full-on production Wrangler Africa. These being one-of-a-kind prototypes traipsing through a canyon of nearly immovable objects, we didn't go fast, we didn't go far, we didn't push hard. But we did drive all the Easter Jeeps, and even just this small taste was outstanding. View 30 Photos Jeep Chief While we listened attentively to the detailed spiels on all this conceptual candy, one question ran through our minds: "How am I going to get in the Chief before everyone else?" And we could see the same thought every colleague's face, those scheming bastards. And why not? The Ocean Blue tribute to the venerable Cherokee of old grabbed everyone's attention since the first teaser images weeks before the event, in part because the vintage truck is up there with mermaids for rarity and lustworthiness. Anything that goes this far in obeisance to that classic Jeep is always going to score huge marks. The Chief is a four-door Wrangler underneath, but in many ways it feels nothing like a Wrangler.

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.