[IanM]

My UK convertible has Bluetooth and Nav but does not have the shark fin.

The salesman told me that it is only necessary for DAB (so I didn't go for DAB). I checked it with BMW customer services because I didn't want the fin, but if I had to have it for Bluetooth/Nav then I might as well get the DAB as well. I shouldn't have doubted him because he really knew his stuff, but I had read all sorts of conflicting statements on the web. BMW confirmed exactly what he said, and my car duly arrived without the fin.

I don't know whether the requirements are different for the coupe or in different markets, but I can confirm that UK convertibles don't need it for Bluetooth or Nav.