A special piece of gesture-recognition technology is what makes it possible. In order to be outfitted with this intelligent product, the vehicle must be equipped with a passive entry system, which Huf has been supplying to commercial car manufacturers for more than 15 years. As soon as the vehicle recognizes the correct key, the trunk or doors can be unlocked or opened with a pre-defined hand motion (a gesture) over the door handle or tailgate emblem—without touching them or actively using the key. It's all thanks to special sensors built into the door handles, which recognize these gestures and compare them with the stored opening-command gesture. "The sensors are so sophisticated that they only react to gestures. As we were developing a kick sensor that can be used to open the trunk, we figured out how our products could be controlled with certain movements. Now we're going one step further to make opening the doors even more convenient," says Stefan Mönig, who leads the Advanced Technology Development department at Huf. The engineers at Huf make use of their extensive knowledge in the development of mechatronic products, which depend on the intelligent interplay of mechanics and electronics.