Thanks for the comments. Ironically, many of my neighbours and local friends have had Range Rovers and RXs stolen in the last few years, and even a couple of mavericks with X5s. (I was going to say 'everyone I know with a Range Rover has had a theft'; it isn't quite true but not far off). So I was aware of the problem both from this forum and experience, but I actually said to myself while sitting at the dealer "an LC will be fine, these thefts are all for SUVs that can be exported to Africa / E Europe, nobody will want to go yomping through the dunes in a V8 coupe". I shall be learning from my mistake and ordering a Nissan Combi van as a replacement.
Haven't had anything from the insurers yet but I'm expecting they'll offer me trade bids, for something that sells with a big dealer spread. I've also written to Lexus UK but nothing will come of that, though I was clear that I won't be buying another (we've had four or five Lexus over the years) and I'll be telling everyone I know the same.
I agree with the suggestions above about putting a hidden isolator switch into the fuel pump or similar, and wish I had done it, and will do on all my future cars. A few hundred pounds work at a competent garage to save a lot of aggravation, plus 50p for a sticker in the wheel arch saying 'tough luck, suckers'.
