How is a car connected?
The connected car differs from previous-generation cars in one aspect. It comes with multiple connectivity points. These include cellular modems such as LTE to connect the car to the cloud; Dedicated Short-Range Communication (DSRC-802.11p) for vehicle-to-vehicle and vehicle-to-infrastructure communication; WiFi, Bluetooth, and other wireless technologies offered by a smartphone or a tablet; and keyless RF or NFC to connect a key to a vehicle.
The embedded cellular equipment (an in-car LTE module, for example) is expected to enable not only off-board navigation and location-based services but also data plan and automotive apps.
The driver phone will be used for running smartphone apps -- beyond allowing Bluetooth-based hands-free calls.
The cellular dongle enables multi-device data plans.
DSRC is expected to drive vehicle-to-vehicle and/or vehicle-to-infrastructure communication by exchanging real-time data.