On September 7, 2014, at the Intelligent Transport Systems World Congress in Detroit GM disclosed it would be introducing auto-pilot features into certain 2017 models of its cars. The "super cruise" or vehicle-to-vehicle V2V technology is likely to be first introduced to the Cadillac range, enabling drivers to switch in and out of semi-automated mode. In December 2016, General Motors began testing self-driving vehicles on public roads in Michigan after Gov. Rick Snyder signed a package of bills legalizing the operation of autonomous vehicles.