
Rolls-Royce and MINI may have the same owner, but the two iconic British brands have never been intended to cross paths. That was until a Texas-based firm called BMP Design decided to squeeze a Rolls-Royce Allison 250-C20B jet engine sourced from a helicopter in the back of a MINI Cooper S. Yes, that's right, just behind the front seats.

As you are about to see, the speed and the acceleration of this little rocket are mind-blowing. As is the noise coming from the turbine engine. Watch the videos after the break.