I'm seeing mpg drop at a pretty good clip now as the weather gets colder, and it's not even cold yet. I'm guessing I will end up around maybe 41.5 or something by winters end, but we'll see. I topped out at 46.0 this year as I let my wife drive the car a few times to the Bay Area and when it was returned, mpg and dropped a good 1.0 or more. Anyway, it's good 'nuff. Such a nice car to drive really.