Push for Prius to be top-seller

Toyota’s goal of turning the Prius — the world’s best-selling hybrid car — into its top-selling U.S. model gets its first test with a wagon version arriving late this year. The 2012 Prius v, a gasoline-electric model with 53 percent more cargo space than the current “liftback” model, may account for as much as 20 percent of overall Prius sales, said a Toyota exec.