I live in San Francisco and drive my Hybrid Toyota Camry about 90% of the time in the city (up and down hills, with stops, etc.). I am getting much lower MPG than I was lead to expect I would get, and it seems to be getting lower. After 10 tanks, I'm getting under 27 MPG. The dealer tells me this is probably due to driving in San Francisco - they can find nothing wrong with my car. But Toyota continues to advertise via billboards in San Francisco: "40 MPG City. Any City" -- which certainly implies that they are referring to mileage in San Francisco and is the primary reason I bought this car. I'd love to hear the experiences of others who drive in San Francisco - so please respond. Thanks!