"in-car gadgets"4.5 starson by dsdev
Pros: lots of optionals
Cons: the optionals can greatly increase the car price
Summary: A phone preparation module is available as an option, allowing you to display/access your phone's address book. Still, you must check the Mercedes compatibility phone list, as not all mobile phones are compatible with the MBZ interface.
Also, the car does include traffic reporting, at least my C320 does (in Europe).