DuoRacer by Robert Kovacs from hungary
designer's own words:
I was looking for the future's motorsport. My inspirations were coming from bike and car races and also from planes, animals, sci-fi. The concept is a team race, where the team members have to connect their vehicles to form a car or a plane. Two bikes become a car which can transform to a quadrocopter. The team members have to use all the three type of vehicles to adapt to the different terrains and to reach the finish line together.