neilz - reliability is my main concern. I'm not saying that a 124 is basically unreliable, just that it's an unknown quantity until it's been owned for a while. I guess the same could be said of almost any new purchase though!
Spike - unsure of the exact method of removal. Getting in to release the parking brake is one thing, but how do you steer it without a key? Or maybe they just lifted the back and towed it?
Bosco - got any E220 badges for sale?
RMS - I'm considering what security measures to take and investigating them.
I have contacted the only possibility for CCTV footage and the police will be checking that soon, I hope. I've also spoken to the site owner and he's going to install CCTV to cover the parking area as well as the entrance gates. At the moment, our house move is stalled due to a land registry problem, so we're not sure how much longer it will be before we can move. With all that we want to do to the house, I can't see it being less than six to nine months yet.