I might be wrong but I suspect the dealers aren't very enthusiastic about the PCD process. My sales guy was perfectly happy to arrange it when asked but no one was forthcoming about it or promoting it.
Oh and you don't take your own car on the track! But they did let us drive an X7 M50i on the track and it's pretty jaw dropping to hammer one around as fast as you can/dare, and see what they can do
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