LAS VEGAS — Drive on any highway and you're bound to see people talking to themselves in their cars, but soon that random chatter may be more purposeful as drivers start giving commands to their in-car digital assistant: Siri.

Even if you don't use her, you know who (or what) Siri is: Apple's intelligent assistant for iOS devices that arrived with the iPhone 4s. Late last year Chevrolet announced Siri would make the leap to your car and, finally, at CES 2013 we got a first-hand taste of the in-car experience.

General Motors brought its all-electric Chevrolet 2014 Spark EV to CES Unveiled and showed us how in-car Siri works. First, you have to have a device that uses Siri, like an iPhone 4S or iPhone 5, that connects to your Chevy via Bluetooth. With that in place, Siri interaction is simple. There's an on-steering wheel button right sitting right where you would naturally grip it. Press it and you hear the familiar Siri beep. Then you start speaking.

First, our guide tried it. Siri responded quickly. I decided to test out the anti-distraction feature by asking Sir to show me a photo. She kindly refused me. In fact, Siri won't do anything that would require you to look at your smartphone screen.

GM also gave us a quick walk through of the new, free, in-car Internet radio service TuneIn. You can literally find stations from anywhere in the world.

Check out the video above for the full story. What do you think about Siri-enabled cars? Let us know in the comments.

Thumbnail image by Mashable