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Hennessey Performance reveal their 800bhp Jeep

Jeep's Grand Cherokee gets a serious power boost...

Hennessey Performance sent out their Xmas press release today which started, "Who Needs Reindeer When You Have an 800 HP Twin Turbo Sleigh?"

With that in mind, Hennessey has released this sole image of their 2013 Jeep Grand Cherokee SRT8 packing a HPE800 Twin Turbo engine package. It consists of the factory 6.4-litre HEMI V8 with an increased displacement to 7.0-litres in addition to a rather sizeable twin turbo system.

In standard specification the Grand Cherokee SRT8 outputs 465 bhp and 465 lb/ft of torque which is good for a 0-60 mph time of 4.8 seconds. However, Hennessey's HPE800 equipped Grand Cherokee SRT8 produces a staggering 805 bhp and 823 lb/ft of torque. The HPE800 strangles the 0-60 mph sprint in 3.1 seconds and can destroy the 1/4 mile in 10.9 seconds @ 130 mph.  

Additional modifications include an upgraded transmission system and torque converter upgrade, 15.1 inch Brembo brakes front and rear, a lowered sport suspension system, lighter 20” alloy wheels, a carbon fibre front splitter and a custom leather interior with Alcantara steering wheel.

"We've built a dozens of 600-800 bhp Jeep SRT8s over the past five years, so we have an existing client base who will want to upgrade the new Jeep Grand Cherokee SRT8 to an even higher level", said company founder and president, John Hennessey. "This vehicle is designed for the performance minded driver who lives in Aspen or Moscow and wants to be the fastest in all weather conditions."

HPE will only build 24 vehicles with pricing starting at $235,000 which is quite a substantial price increase over the standard car’s $55,000 price tag. But then you do get performance to shame most sports cars…

Image courtesy of Hennessey Performance


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About Tim Oldland

Contributing Editor - Long time petrolhead, automotive design engineer and journalist. Also Social Media Manager for the ecurie25 Group - Tim has worked in the automotive sector for many years, but has been a fan of anything with 2 or 4... read more