The Hennessey Venom GT, if you haven't heard, is fast. It's an extended Lotus Elise with a twin-turbocharged GM V8 stuffed in the middle. It has 1,244 horsepower to and weighs a mere 2,743 pounds. We like to bandy about words like "crazy" and "insane" here, but with this car, we really mean it.

Everyone has been hearing that the Hennessey Venom GT would be the fastest production car in the world before one was even built... perhaps to the point of annoyance. But with 1,244 horsepower to carry just 2,743 pounds, there was little reason to doubt that the car would be very, very fast.

God Bless Texas. Land of the free, home of the batshit crazy. Crazy like John Hennessey who took his 1,226 VR1200 Cadillac CTS-V to test the 85 MPH highway's tag systems at higher speeds.

John Hennessey's life isn't special. Get up in the morning. Take the family wagon for a little drive. Come home. Granted, the family wagon is a 700-hp Hennessey CTS-V "Hammer Wagon" and the little drive includes a 189.7 mph standing-mile CTS-V world record. But he did drive it home.

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.

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.

The addition of a Hennessey Performance stainless steel exhaust bumps power on the Porsche Panamera Turbo up to 550 HP and makes the German sled sound like Tom Waits gargling when mom drops the hammer outside the PTA meeting.