2012 Lexus GS

Say "hybrid" and most U.S. buyers think Toyota, if not Toyota Prius. Indeed, the company just sold its millionth Prius in the United States, where roughly half of the 2 million Priuses it had built as of last fall have found homes since 2000. But Toyota's luxury marque Lexus also has hybrid models, including the dedicated CT 200h compact hybrid hatchback now being launched. The oldest Lexus hybrid on the market right now is the midsize GS 450h sedan, which debuted in 2006. And its time for renewal is about to come, with Lexus releasing a pair of teaser photos of a concept car it'll unveil in...