Last December, Honda delivered a fleet of hydrogen-powered FCXs to the City of Los Angeles. The FCX was the first fuel cell vehicle to receive U.S. government aproval for commercialization. The FCX utilizes Honda's own independently developed high-efficiency, high-output ultra-capacitor energy storage system to achieve powerful, responsive driving performance. The layout of the powertrain's structural components has also been optimized to attain a spacious interior with room for four adults in a compact body that maintains a high level of collision safety performance no matter what the crash direction. Honda initially plans a limited market release of approximately thirty vehicles over the first two to three years in Japan and the U.S. combined.