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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.

2023 New York Auto Show Mega Photo Gallery: See all the new cars from the show

The 2023 New York Auto Show was a rather lively show full of North American vehicle debuts and a lot of new metal we’ve never seen before. As always, we were on the ground covering it from every angle for you, including photographing all the reveals on the show floor. There were a ton of new EVs shown and even a stunning concept with the Genesis GV80 Coupe Concept. YouÂ’ll be able to see them all, from the production Ram REV to the little (but now much bigger) Kona, in the numerous galleries below.   2024 Kia EV9 2024 Kia EV9 View 7 Photos 2024 Kia EV9 GT-Line 2024 Kia EV9 GT-Line View 5 Photos 2025 Ram REV 2025 Ram 1500 REV View 6 Photos Genesis GV80 Coupe Concept Genesis GV80 Coupe Concept View 9 Photos 2024 Hyundai Kona Electric, N Line and Limited 2024 Hyundai Kona Electric View 21 Photos 2024 Jeep Wrangler 2024 Jeep Wrangler 4xe View 22 Photos 2024 Subaru Crosstrek Wilderness 2024 Subaru Crosstrek Wilderness View 14 Photos 2024 VW Atlas Peak Edition 2024 VW Atlas Peak Edition View 7 Photos Hyundai Ioniq 5 Disney100 Platinum Concept Hyundai Ioniq 5 Disney100 Platinum Concept View 9 Photos   Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Genesis GV80 Coupe Concept is coming to reality

An inside look at Mopar's SEMA fleet

Mopar is heading to the SEMA show in Las Vegas with a fleet of customized vehicles that appeal to enthusiasts of all stripes. There's a Dodge Viper ACR concept that follows in the lineage of the supercar's great road racing past, and a custom Ram ProMaster that might just be the ultimate outdoor party machine.
We got an inside look at Mopar's cars that will be on display at the show, which also include a Dodge Challenger T/A concept, two crazy Jeeps and a Ram 2500 Outdoorsman that could change the way you camp. While these are some of our favorites, Mopar is bringing plenty to SEMA, so let us know your top choices in the comments section.