Chevrolet, the first automaker to bring Apple's Siri Eyes-Free feature to market, has debuted a new TV commercial that showcases the feature as an integral selling point for the forthcoming 2014 Chevy Sonic. The Sonic, the second production model with the feature behind the Spark, has an integrated steering-wheel button that activates Siri to allow voice control of several functions of iOS devices without ever activating the screen or relying on visual feedback. Nine other automakers will also be bringing out models that feature Siri Eyes-Free.