The Ariel Atom V8 is bonkers. 500bhp in a car that weighs 550kg, giving a power to weight ratio of over 900bhp per ton and 0-60mph in a claimed 2.3sec. According to Ariel boss Simon Saunders ...

Top Gear fans will remember the Ariel Atom V8 ... the 500-horsepower track special showed the world what a true lightweight car could do, posting a 1:15.1 lap around the show's test track.