http://www.epochtimes.com/b5/10/2/28/n2830483.htm "電動馬達從以往的直流電(DC)改為交流電(AC),工作電壓也從288V增加至650V。" http://www.topgear.com/uk/lexus/rx-450h/road-test/se-l-premium RX450h gets a pair of AC synchronous electric motors - one in the front and one in the back