This iDrive thing is an abomination. My minivan radio has more capabilities. The iDrive has a nice color screen, looks cool but essentially does nothing. Really! Shockingly disfunctional and distracts from the overall driving experience. It constantly displays a warning that essentially says "DONT LOOK AT THIS WHILE YOUR DRIVING". If I can't upgrade this thing, I think I'm going to trade it in. really, really disappointed.
Handles like a dream, cruise control is very cool and auto windshield wipers also cool. But these features can be found on vehicles at half the price
Either put nav, wireless internet access, non proprietary phone integration, performance telemetry, ipod integration or rip it out!!