Hennessey Venom F5

The Venom F5 seems like something you’d carjack in Grand Theft Auto. Hennessey claims the roadster variant is the fastest, most powerful convertible in the world, and unlike many of the creatures on this list, it does without electric-motor assistance. Power comes from a twin-turbo 6.6-liter V-8 with an 8500-rpm redline. Given the goal of 311 mph, if you happen to see one of the 54 Venoms, it will be a blur.

ORIGIN: United States PRICE: $2.1M+ POWER OUTPUT: 1817 hp 60-MPH CLAIM: 2.6 sec TOP-SPEED CLAIM: 311+ mph