BMW and Toyota signed agreements aimed at long-term collaboration of a fuel cell system, joint development of architecture and components for a sports vehicle, and joint research and development of lightweight technologies. The fuel-cell vehicle system includes a fuel cell stack and system, hydrogen tank, motor and battery, aiming for completion in 2020. BMW and Toyota will collaborate on codes and standards for the hydrogen infrastructure, necessary for the distribution to get the public to buy into it. A mid-size sports vehicle feasibility study to define a joint platform concept, including the development of lightweight technologies, is to be completed by the end of this year. The joint effort will research the development of a lithium-air battery with energy density greatly exceeding that of current lithium-ion batteries.