I think the official figure was somewhere in the region of 8504..can't remember off the top of my head to be honest
This will include many LHD cars as well tho, not just UK cars.

I have roughly 40 foregin cars to add to the album when I get chance to.

My fully updated list is currently just over 530. The album has around this number of pics in, but includes 52 unknowns at present..getting less each day as members recognise variuos cars. New pics being added all the time tho.