Mercedes-Benz is making it easy for iPhone owners to use their handset in the car with a new in-car system that "puts the iPhone on wheels." The automaker is introducing a new A-Class line of cars which will have an updated COMAND infotainment system that's centered on the iPhone 4S. Not only can you access music from your phone, the new Digital DriveStyle App and its companion Drive Kit Plus for the iPhone lets you use Siri to send and listen to messages. You can also access stock quotes, retrieve the local weather forecast and review your upcoming appointments. Mercedes is the first automaker to embrace Siri in its in-car infotainmen
