I drive a 2010 Prius 3 and in non ac weather my around town suburban mileage approaches 60mpg. Summer driving (live in Phx.) nets me 52 to 54mpg. Highway driving nets me typically 55to 57 mpg unless there is a headwind etc. I drive no faster than 70 on the freeway and in suburban driving I make an effort to time the lights or coast if I am stopping.