It seems a new smart watch has been shown at CES 2015 produced by LG in partnership with Audi. The article says that the watch can control some car functions, like locking and un-locking, when it it paired to an Audi car.
More details here: http://www.techspot.com/news/59345-lg-prototype-smartwatch-powered-webos-looks-stunning.html
More details here: http://www.techspot.com/news/59345-lg-prototype-smartwatch-powered-webos-looks-stunning.html