According to the Wall Street Journal, Microsoft has tied-up with Ford Motor Company to offer WiFi system in Ford cars. Both of them is expected to unveil a joint project next weekend at both, the Detroit Auto Show and the Consumer Electronic Show. If the project sees the light of the day, then it will allow wireless communication, including the ability to receive email and download music in the car. At first the WiFi system will be available only in the Ford Focus and the Five Hundred, then it will be spread across the automaker's lineup.

Source