The Chevy Camaro ZL1 convertible was just announced this morning, and already it's been topped by John Hennessey. Why settle for 580 HP when you can get 655 HP and a promise of exclusivity?

Watching the speedometer is probably the last thing you are thinking about when you are piloting a 1200 horsepower Hennessey GT well into triple digit MPH. For car nerds like myself, it's hard to watch a speedometer climb in this manner without getting a little bit giddy even when you aren't behind the wheel of one…

Imagine a lighter-weight Cadillac CTS-V Coupe with nearly double the horsepower, a wider stance and panhandle-sized contact patches.That's the Hennessey V1000, a model the company plans to build only 12 copies of for well-to-do speed freaks.

The Hennessey Venom GT's returning home to its summer home in England, this time with the fourth production version in bright yellow set for its track debut at the Goodwood Festival of Speed. Behold, the "B-Killer." Update!

The Cadillac CTS-V Sport Wagon is an ideal platform for some fairly gnarly burnouts. The 650-hp Hennessey V650 "Hammer Wagon" appears to be an even better starting point for killing Bibendum's offspring.

John Hennessey's got this great shtick going where he takes his Frankenstein monsters and pits them against stock versions of cars we associate with performance. It's total nonsense, but how the hell do you not watch a twin-turbo Cadillac Escalade race a Nissan GT-R?

When the Hennessey CTS-V Sport Wagon squared off against the Porsche 911 Turbo, some complained it was the slightly older 911 Turbo. Fair enough. Here's the 650 hp wagon against a Nissan GT-R.

Right on schedule, like the 3:10 to Yuma, John Hennessey's dropped a blower kit into the new Camaro SS Convertible and found 602 horses. Just try and keep the eviscerated rubber particles out of your teeth.

Since the moment I first saw a CTS-V Sport Wagon parked outside of the Hennessey headquarters in Sealy, Texas I knew a quarter-mile run video was coming. But a Porsche 911 Turbo versus a 650 HP Hennessey-tuned Caddy station wagon? Ridiculous.

The original Viper, in GTS Coupe form, is still one of the most beautiful American cars ever built. The Dodge Viper GTS Hennessey Venom takes that beauty and turns it up a notch to "11." It'll also kill you if you're not careful. (via Photo Finish)

If you're in the Hennessey family, your idea of a grocery getter is a Cadillac CTS-V Sport Wagon. Baseline on the Dyno was 479 RWHP (16% loss), 462 lb-ft of rear-wheel torque. Wait. Baseline? We know where this is going...

Jalopnik reader and car enthusiast par excellence Jay Leno invited the 1,200-hp Hennessey Venom GT into his shop for an episode of "Big Dog Garage." They also shared video of the turbolicious Venom GT on the track.

The Hennessey Venom GT made a surprise appearance at the famous weekly Cars & Coffee in Irvine, CA this morning. Check out the first pictures of the car in the 'merican wild.

Not to be outdone by a $75,000 paint job, Hennessey has unveiled its take on the Camaro convertible, offering an LS9-powered 755-hp version to 24 buyers for $132,500. What ever will the prom queens of Lakewood choose?

Say hello to the Hennessey V650, a Cadillac CTS-V Coupe fluffed up to produce a satisfying 650-hp at the flywheel. This dyno run shows the wheels deliver a very adequate 544 hp and and 562 lb-ft of torque.

When people talk about Hennessey Performance Engineering they often complain that, while the cars are fast, they're not great at withstanding small arms fire. The solution? A custom VelociRaptor-based armored SUV they're calling the "War Wagon."

Speed:Sport:Life's Zerin Dube brought his new Audi S4 to take pics of the VelociRaptor 600 and, before we knew it, John Hennessey himself was in it drag racing me behind his shop. Then more awesome ensued.

Hennessey Performance's "standard" Raptor is supercharged, produces 500 horsepower and is called VelociRaptor 500. Their new 6.2-liter Raptor produces 600 horsepower and is called the VelociRaptor 600. Creative? No. But who needs creativity when you've got two giant bumper-mounted turbochargers?

The Ford F-150 SVT Raptor 6.2 gives Dearborn's purpose-built off-roader an extra dose of power. Hennessey's 600-hp, twin-turbocharged version of the 6.2 gives it an Olympic-sized swimming pool full of testosterone.

The first production Elise-bodied, Corvette ZR1-powered Hennessey Venom GT adds a layer of shiny paint, but with 1,200 hp and a 2,548-pound curb weight the first customer will surely strip it back down to its carbon fiber body.