How To Build A 300mph Car

Welcome to the world’s slowest car factory, birthplace of the world’s fastest car

- Jack Rix

There exists a simple formula for calculating the theoretical amount of power you require to hit a certain top speed for a car with a given drag coefficient and frontal area. It’s fascinating stuff, honestly, but I shan’t put us through it here. Ten quid says John Hennessey has it tattooed on the back of his eyelids, though. Because when it comes to his ongoing, road-legal 300mph project – the Venom F5 – you get the sense he’s designed something that looks cool and slippery, then cranked up the turbo boost until his calculator says the top speed is sufficiently large. After spending a day with Christian von Koenigsegg (CvK), touring his factory in Ängelholm, Sweden and exploring the all-new Jesko hypercar (literally hours before it was packed off to the Geneva motor show), I can confirm that he has a very different approach.