New hybrid variant of the ES 350 sedan could come in the next-generation ES model. Its drivetrain would likely be based on the Toyota Camry hybrid system.
(http://imgs.blackfalconmedia.com/2009/9/medium/4374649.jpg)
Lexus trademarks 'ES 300h' nameplate for possible Camry-based hybrid (http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/kAjMNAWx3aM/lexus-trademarks-es-300h-nameplate-for-possible-camry-based)