Mike 
2006 Toyota Prius Hatchback 4dr Hatchback (1.5L 4cyl gas/electric hybrid CVT)
MPG depends on how you drive, PERIOD!
 pkg #2. 33,273 mi from 1/19/06 to 1/7/07. Avg 48 mpg first 15k mi (haven't updated spreadsheet) Best tank 712 mi. Only 2 tanks under 40 mpg, 34.4 & 38.8, 1 hr in St Louis then to Pine Bluff, AR March 5th (plea 5th on speed). 70 mph gets around 45 mpg, 60 mph 50 mpg. Less mpg in winter. 20-40 mph just right (accel & coast) gets 70-100 mpg on hwy from Pine Bluff to Little Rock (best was 93mpg @ 35mi). CPU mpg reset to 0 on its own a few times, once while looking at it. Out of gas 3 times. W/6 blue bars barely made 1.7 mi to gas sta. Most gas on fillup 12.4 gal. Elec A/C & engine heat. READ MANUAL. Overall, I LOVE IT!