Sorry also; 2008 EPA ratings for the Prius are:
Regular Gasoline - 48 City, 46 Combined, 45 Hwy
Don't think any Prius owner saw a real world 60 mpg, although they were rated at that by the EPA. EPA tested 13 cars and got an average of 45 mpg; some of our smart owners are doing as well (although on 91 octane.)