John Hennessey. You've heard the name, seen his 1244bhp Venom GT, and watched it go 435.31kph to claim the Not-Guinness-Certified-But-Still-Chuffing-Quick record for the fastest production car in the world.

The Texan tuning king exclusively showed Top Gear his latest road-legal land rocket: the Venom F5, a V8 twin-turbo evolution of the Venom GT briefed to shove the Bugatti Veyron Super Sport out of the record books and replace it with a big fat chunk of American horsepower.

But even though the Venom is the car grabbing the headlines, it's actually just a sliver of what makes up the Hennessey brand.