I would suggest having the car returned to you until anything is agreed. The last thing you need is for it to be removed and lost in the system. I've had to wait 6 months to get a car returned having been written off as a stolen recovered. It spent the whole winter outside with all the windows open. Had no choice but to scrap it then as became totally donald

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Having the car on your drive will ensure that you know where it is. Also, you may find that the king insurance tw4ts have already registered it as a write off. Have suffered from this as well.
I suspect that the best outcome will be 50/50.

Third party involvement, however dubious, will always complicate things. Try and avoid a courtesy car as well.
For reference, my local stealers, Stevens Vauxhall are now charging
£25ph + vat for accident repairs.
Having read the linky thing: Glad to hear both OK. try not to stress too much about the whole thing, and above all keep a close eye on those pesky insurance tinkers.
