cheers hotel21 and rob114.
to fill in the story, it wasn't my car (fathers) - hes speaking to the police, i have to go and see them as well, but only to make a statement as a whitness (i assume), the thread was really on behalf of him.
Basically, a guy came round to test drive the car (coincidentally it was a facelift MV6...), i took him out and got him to sign a piece of paper saying he had a liscence and insurance for this (father was out at the time). Next day he comes back with the cash, saying he wants to buy the car...the paper work (V5) is signed and as the guy starts the car he has his foot flat on the gas with the car in gear.
The car shot accross the road it was parked perpendicular to and smashes into a wall, destroying the wall (1ft thick, stone) and slightly damaging the cars bumper. The guy got out, had a look at the damage, and left without reporting it. I wasn't here for this which makes me suspicious as to why the police want to speak to me - anyway.
The neighbour came round the next day asking for an explanation, my father filled them in and the police got involved, and here we are.
Not really sure as to why its got so serious, I am assuming he didn't have insurance and is also being done for not reporting an accident. We have guessed that he had fully comp on his own car, and was therefore 3rd party on the MV6 until he owned it, at which point his 3rd party cover on cars he didn't own from his fully comp ended as he now owned the car.