thieving basterds, if i where you i wouldnt worry too much about the car. people who steal sat navs steal them for a quick 50 quid, and to be honest they prob wont even think of going threw the memory to see where your car is, and if they wer into stealing cars they would have got into your car without all that damage. but just be ready for the fuckers just to be safe. gutted for you mate