Hennessey Performance Promises to Turn McLaren MP4-12C into an 800HP Beast

If there's one thing the stock McLaren MP4-12C has in abundance it's power from the mid-mounted 3.8-liter twin-turbocharged V8 engine which is rated at 600PS (592HP) and 600Nm (442.5 lb-ft).

However, Texas-based tuning firm Hennessey Performance begs to differ as it believes the MP4-12C could do with some additional horses under the hood – 200 of them, to be precise.

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Santa, Your Ride has Arrived: Hennessey's 2013 HPE800 Twin Turbo Jeep Grand Cherokee SRT8

With a 6.4-liter HEMI V8 engine pushing 465-horses 465 lb-ft (630 Nm) of torque for 0 to 60 mph (96 km/h) sprint time of 4.8 seconds and a quarter mile time in the mid-13 second range, the regular 2012 Jeep Grand Cherokee SRT8 is one of the fastest production SUVs around.

But for Hennessey Performance Engineering [HPE], that's not enough. The Texas based tuner, known for its outrageously powerful tunes, has done it again with the introduction of the 2013 HPE800 Twin Turbo Jeep Grand Cherokee.

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Hennessey’s 1,200HP Venom GT Heading to Pebble Beach Festival

Hennessey Performance, the creator of some of the world’s most powerful cars such as the Cadillac V1000 CTS-V Coupe, will hold the U.S. debut of its 1,200HP Venom GT supercar tomorrow, August 17, at the McCall’s Motorworks Revival during the Pebble Beach festival.

It will be the first official appearance of the Venom GT in the U.S. after its overseas debut at the Goodwood Festival of Speed in UK last month (where it scared a Bugatti Veyron SuperSports).

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Bulgarian Design Studio Vilner Revisits Jeep Grand Cherokee SRT600

The Hennessey-prepped Jeep Grand Cherokee SRT600 is once again in the center of attention of the Bulgarian design firm Vilner. Back in October 2010, the company had launched its first take on the Hennessey Grand Cherokee SRT600 that packs a modified V8 engine fitted with a "Vortech" turbo system for an output of 600-horses.

For its second go on the Jeep, Vilner completely revamped the interior with red and black Alcantara combined with black leather trimmed in red seams. The company says it also designed a new flat-bottom steering wheel with its shape customized to fit the owner's personal preferences.

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Hennessey Reveals Monstrous 1,000HP Cadillac CTS-V Coupe

Hennessey is one of America’s best-known tuning houses offering solutions for a great number of vehicles ranging from Nissan GT-R bashing Caddy Escalades to Ferrari’s 458 Italia –and anything in between.

Having already tuned the sedan and estate versions of the Cadillac CTS-V, Hennessey decided it was time to give a little attention to the coupe version: hence the V1000 CTS-V Coupe was born.

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Video: Guess What Scared a 1,200 HP Bugatti Veyron Super Sport at Goodwood…

There’s nothing faster, short of a Formula 1 car, than a Bugatti Veyron, right? In particular, a Bugatti Veyron Super Sport boasting a 1,200HP quad-turbocharged 16-cylinder engine, four-wheel drive tech and a 258 mph (415 km/h) top speed. Whoever is behind its wheel must feel invincible, right?

Well, actually, no. A few days ago, at the Goodwood Festival of Speed, a Veyron Super Sport that was ready to begin its climb up the hill pulled over and let another car start first. What car was that?

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Hennessey's HPE1000 Escalade Cracks 60 in 3.3 Sec, bests Nissan's GT-R [with Video]

The concept of turning SUVs into pavement-pounding, drag-racing, supercar-shredding monster rods never ceases to amaze me, and by that I mean my jaw is on the floor and I'm completely boggled. I love me some automobiles (and vehicular transportation in general), but there's something about a nigh-three ton box on wheels and oodles of GO that seems...weird.

However, if monster rods - or high performance in general - are your cup of Starbucks soy latte, then Hennessey has got you covered (as if you didn't know that already, what with their cray-cray 1,000+ horsepower Vipers from way back when). Below, for your viewing pleasure, is video of a 2011 Cadillac Escalade drag racing a 2011 R35 GT-R and beating it.

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VIDEO: Hennessey’s Cadillac CTS-V Sport Wagon vs Nissan GT-R and Porsche 911 Turbo

American tuning firm Hennessey has crafted some pretty insane vehicles over the years. One of its most recent tunes is based on the Cadillac CTS-V Sport Wagon, which leaves GM’s factory with a 556-horsepower 6.2-liter V8 lump, but once Hennessey’s engineers perform their magic under the hood, output is lifted to 650 horsepower.

To show off the tuned CTS-V Sport Wagon’s potential, the Texas-based company brought the Cadillac to the track and drag raced it first against a stock 480HP Porsche 911 Turbo [997] and then a standard 485HP 2011 Nissan GT-R. Watch what happened in the video after the jump.

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VIDEO: R&T Takes Hennessey's Venom GT Out on the Track

Remember Hennessey’s barnstorming, 1,200 hp (895 kW) Venom GT? Well its back and the journalistic titans at Road & Track have driven it. And there’s a video, to boot. Weighing in at a lithe 2,685 lbs (1,218 kg), the phenomenal Venom GT builds on Hennessey’s experience with tuning the Viper, 5th generation Camaro and various Cadillacs, among many others. It’s a simple formula, really. Big power + light weight = big fun. Read more »

Hennessey Unleashes the Supercharged HPE600 Camaro with 602HP

Hennessey Performance has released another performance upgrade for Chevy's new Camaro SS, called the HPE600, based on 2010-2011 LS3 or L99 powered versions. It encompasses, among other things, a TVS2300 Supercharger System, which raises output to 602 hp and 595 lb-ft (807 Nm) of torque.

The Texas-based tuner claims that the HPE600 is capable of completing the 0-60mph (96km/h) sprint in the mid 3-second range and run the quarter mile (~400 meters) in 11 seconds.

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Hennessey's Venom GT is a Corvette-Powered Elise with 1,200HP

Some say you can't make a Lotus any better. Well, maybe they haven't head of Hennessey and its SEMA Show-bound Venom GT. The American firm's new toy is based on the Lotus Elise and, in its flagship version, comes equipped with an out-of-this-world 1,200 hp (895 kW) twin turbocharged V8 engine sourced from the Corvette. Power is sent to the rear wheels through a six-speed manual gearbox.

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