The F5 got its name from the strongest tornado scale - a F5 produces winds in excess of 261-318mph
The F5 takes some technology and design of its predecessor the GT, Hennessey slimmed it down and made it more aerodynamic for higher top speeds
Hennessey also beefed up the size of the turbos with motor output expected to be well beyond 1400hp
The F5 would beat racing formula 1 cars and nascar without a challenge, the feat of getting that power into a street legal car is absolutely astounding.
When the F5 is officially the most badass American car to date with possibly the largest price tag of over 1.2 million