It's a simple idea, but a rather smart one. Stojanovic proposed that rear-seat entertainment systems fail to operate unless the car senses that the seatbelt has been inserted. If a kid wants to get his Yo Gabba Gabba fix, then he or she needs to buckle up. The entire concept is so basic that we're kind of surprised no automaker has put this into practice yet.
Click past the jump to learn more about the Nevena Stojanovic's idea, and how it relates to the VW Fun Theory.