Last month, Chevrolet announced that its 2013 Sonic and Spark had become the first cars to offer support for Siri's "Eyes Free" mode. The feature integrates Apple's personal assistant with the vehicle's entertainment system, allowing the driver to access information while keeping his or her eyes on the road. Chevrolet has now begun a national advertising campaign touting the feature on the 2013 Sonic, launching a new television ad called "Buttons". iSpot.tv founder an
