Who on earth looks at the Lamborghini Aventador and thinks “y’know, it’s nice and all, but 690bhp just isn’t enough”? Underground Racing, that’s who. The North Carolina company has built a reputation on constructing lunatic fast Lamborghinis, and has now turned its attention – and a twin-turbo kit – to the Aventador.

The result? More than 12oo horsepower and a 0-100kph time of less than three seconds. Complete madness, of the type we enthusiastically applaud.