The RAC has two of the most beautiful buildings in the country as members clubs. The Pall Mall building is incredible with Turkish baths, a large basement swimming pool, beautiful restaurants etc. The Epsom country house and grounds and golf course are very picturesque. There's also a sort of pub as well as a entire leisure building.
As for the cars, I can't even remember all the cars I've seen. Many are owned by members. A few that stick in the memory - Veyron, F40, Huaryra, Old race cars, classic Ferraris, Countasch...
At Epsom they have a breakfast club meeting for members cars, usually classics.