I have a 2009. My NAV is the worst crap I have ever used. Terrible maps. I complained to the dealer and they are updating my maps to the latest NAV version. Tomorrow. Under warranty.
I'll update after I get it back.
2009 Space Gray Carbon Leather E90 with DCT, Loaded except for that stupid cruise control and moonroof. Mods: AA pulley and air filter. Fabspeed 200 cell cats, Xpipe w/resonators and no secondary cats, Powerchip tune, Eisenmann Sport Mufflers, Xenon interior lights, Vorsteiner Rear Diffuser II, SWS8 subs, JL Audio XD400 bridged 2X200W