This is not yet an autonomous car, but is approached. Ford S-Max has just received a new option to its catalog. It comes to a new speed limiter “intelligent”. It is coupled to a camera that reads road signs and regulates the speed accordingly limiter. You exit the highway? Limiter switches automatically from 130 km/h to 90 km/h without intervention of the driver.For vehicles equipped with the navigation system, the limiter consults the GPS if it cannot find a sign. Argument commercial number 1 of this option, the 35,000 radar installed in Europe.
Source : “All-New Ford S-MAX First to Offer Intelligent Speed Limiter Amid Range of Smart Innovations”, Ford Europe press release, March 23, 2015