The 2013 Lexus ES 300h Hybrid is almost an identical twin to the new Lexus ES300. You'd be hard pressed to tell them apart aside from a few discreet badges. Of course once you left the hood, you'll immediately notice the difference when you see the 200 horsepower four-cylinder Atkinson cycle engine. You'll also see the difference at the pump as the newest Lexus gets an E.P.A.certified combined fuel economy rating of 40 miles per gallon. So what is is like to drive the ES 300h Hybrid.