Our lass got me a 1/18 Frank Beila RS500 DTM by minichamps one year and the detail is very impressive - like you can't really see the discs & calipers unless you shine a torch in the back of the wheel - but they are there, all the diff coolers and well, everything it seems - very good imo.

It was a nice x-mas gift don't get me wrong but the sponsers etc don't mean anything to me -it being German DTM.

I've had a quick look now and again for BTCC RS500 stuff in 1/18 and it's just not available I don't think?

I noticed about the 1/43 seemingly more abundant but I really like the size & quality of the 1/18 stuff and didn't want an 'odd' collection, so my collection is just one!