One of my work mates had this too...
But the thing is it doesnt work particularly well with Z4Mc's as there are so few. It works by basically finding a car thats identical to yours, so you dont need to MOT, tax or insure the car, also if you get caught speeding or any traffic offence it will go to the address of the numberplate owner. My work mate had a megan so it was easier to clone it as there are so many. She had 4 speeding offences sent to her, all in London and she lived 350 miles north... and having an alibi for that period of time got off the hook. Odd they decided to do a Z4M. A criminal without much research, sure everything will turn out fine but it is a pretty big inconvenience.