More fun in a Volvo than one could imagine. It is different too. Swedish cool that turns heads without being ostentatious. There are dozens of BMWs out there. So if you want something that does pretty much exactly the same thing, but isn't "me too", go for the C70.
Naturally the roof. But over time the small coat hook and lockable storage win out too, which the BMW has neither.
Making the SatNav and phone work off the same screen.