Sorry to hear about that. My mate had his 3.7 rammed by Corsa, driver was never confirmed, owner reported that car was stolen(taken without permission)
He only had third party, fire and theft cover but put in claim for Motor Insurance Bureau, it was valued more than he paid for it 2 years ago and he did not loose his no claims discount. Some details here including pictures and CCTV footage:
http://forum.a8parts.co.uk/showthread.php?t=5740
Like in your case there was not much body damage but rear wheel was way out out of correct position .
He then sold it for £200 to somebody who bodge fixed it, drew for couple of month and then sold on.