Electric windows, power steering, air-conditioning, rear-view camera, GPS... that is just a small selection of all the inventions that have altered the face of modern cars and brought great change to the everyday lives of motorists. Some have helped improve safety. Others have redefined comfort standards. The hands-free card has made using cars easier. First designed by Renault 20 years ago, it quickly become a hit with consumers despite a few bumps along the journey. Pascaline, Head of Cross-Cutting Products at the Renault Group Products division, takes us through the history behind the magic card.