IKEA: Mysterious passenger

To celebrate the Week for Sustainable Development in France and promote eco-friendly habits, Ikea enlisted La Chose, Paris to launch The Mysterious Passenger. Participants register on the Ikea France carpool site. Amongst the registrants is a "Mysterious Passenger," and drivers and passengers lucky enough to have him or her in their Ikea carpool will win a 1000 Euro gift certificates to shop at the store.