Dreamers and mavericks compete to create the most fuel efficient cars ever made. At stake is USD$10 million in prize money and the opportunity to revolutionise the auto industry. But the X-Prize is not just about inventing new auto technology. The competition is designed as a catalyst for innovation that can change people’s minds about what is possible. Over 100 teams from around the world descend on the Michigan International Speedway to compete in a series of rigorous trials to determine which vehicle’s design and implementation is the biggest game changer. Here, every method from hybrid, compressed air, electric, ethanol, gas and even urea powered cars has a chance to win a ten million dollar prize. The main criterion is that each car reaches or exceeds 100 MPGe [100 Miles per Gallon or Energy Equivalent]. The goal and legacy of the competition: an efficiency monitor for cars.