I made a trip about `1300 miles round trip.while on the road i kept it at 71 on the cruse control most of the time.There were many times i would bump it up to 73 keeping up with the flow of traffic in the right lane. my average was 39.2 With my 05 and 06 prius ,same trip,same time of yr mild weather i got 46.
The first 8000 miles with my 05 prius i drive it like most prius drivers,tried to get all the mpg i could get.I bought them to enjoy and get me where i want to go and i no longer baby it. I lost lost about 7 mpg going to the camry but I love the camry. I cant say a bad work about the prius,i had no problems.