The draft guidelines outline a challenging multi-year competition witha multi-million-dollar cash purse. Teams first are required to meet arduous standards proving they are capable of designing and building production-capable, super-efficient vehicles. The vehicles then will compete in a series of rigorous stage races that test the vehicles under real-world driving requirements and conditions. Vehicles will compete in two different categories - Mainstream (4+ passengers, 4+ wheels) and Alternative (2+ passengers, no requirement on number of wheels). Winning vehicles must exceed 100 miles per gallon or its equivalent, while also meeting rigorous emission requirements.
More information on the challenge is available at auto.xprize.org.