i was just checking out the EPA site and based on the average of 30 cars, the average mileage for a 2013 prius (no models or trims specified) is 46.9, which is really not all that much higher than the average here in the fuel economy log (about 42 MPG). 5 more mpg with the prius, and this a newer prius. the mirage can hang!
http://www.fueleconomy.gov/feg/Find....n=sbs&id=33324
forum average beats early 2000's prius.
http://www.fueleconomy.gov/feg/noframes/16705.shtml