The goal of the Progressive Automotive X PRIZE is to inspire a new generation of viable, super fuel-efficient vehicles that offer more consumer choices. Ten million dollars in prizes will be awarded to the teams that win a stage competition for clean, production-capable vehicles that exceed 100 Miles Per Gallon or energy equivalent (MPGe).
The Progressive Automotive X PRIZE will place a major focus on affordability, safety, and the environment. It is about developing real, production-capable cars that consumers want to buy, not science projects or concept cars. This progress is needed because today’s oil consumption is unsustainable and because automotive emissions significantly contribute to global warming and climate change.

http://www.progressiveautoxprize.org