There's one for sale down the road from me, I think is going for about £46000.
I thought the ones used in the real G4 challange were not to be sold in the UK.
That RRS is in the next challenge graphics for the 2008/2009 event, not a fan of them, looks like a BMW Dealer Support Car!
Originally the 2003 Challenge Vehicles weren't approved for sale in the UK but paperwork materialised and then they were!
The 2006 Challenge Vehicles were all sold off officially through closed auctions. So there are DII's 110's, D3's FL's, RRS's and FFRR's all in G4 kit.
There is a thriving owners
club and if you want the best quality ex-G4 cars look
here. You can get a mint D3 or RRS for a lot less then £46k!