If you're a discerning "green" buyer, you probably know that the term "hybrid" doesn't always mean the same thing. So-called full hybrids that can actually be propelled from a stop on electric power alone--versus so-called mild hybrids that just shut off the gas engine when the vehicle isn't moving--are rarer still. The much-improved 2009 Toyota Highlander Hybrid is one of these rare full hybrids, which makes it an especially good fit for urban families. The wholesale changes implemented in 2008 carry over into 2009 and help the Highlander Hybrid's gas-electric drivetrain run better while still achieving excellent mileage.