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Hennessey HPE800 - 808bhp supercharged Mustang goes on sale

New model, based on the Shelby GT350, sprints to 60mph in 3.3sec

Hennessey has revealed its latest, blindingly fast version of the Ford Mustang, in the form of the HPE800.

Based on the Shelby GT350 variant of the Mustang, the Texas-based tuner - best known for its top-speed record duels with Bugatti - has lifted the standard GT350's 526bhp output to a thundering 808bhp.

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Torque has also risen, from 429lb ft to 657lb ft. The gains come courtesy of a supercharger system for the 5.2-litre flat-plane crank V8, along with 11.0:1 compression forged aluminium pistons, forged steel connecting rods, a carbonfibre high-flow induction system, upgraded fuelling and ECU changes.

The results of the extra horsepower are a 0-60mph sprint of 3.3 seconds - just a tenth shy of the time originally recorded by the McLaren F1 supercar - and a quarter-mile time of 10.8 seconds at 133mph.

Other changes in the HPE800 package include Hennessey and HPE800 exterior badging, Hennessey-branded floor mats and embroidered head restraints, numbered plaques on both the engine and dashboard, and a 3-year/36,000-mile warranty.

The rest of the car is as it left the Ford factory, including the famous Shelby stripes - though Hennessey can of course supply a range of other components to give the car an even more aggressive look.

Hennessey will build only 50 units of the 808bhp car - though given the company's mission, we'd be surprised if an even more powerful Mustang didn't arrive at some point in the future.

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