Well, I've had the Prius for one year now and here are the numbers - odometer 9669 km / 6008 miles total fuel 496 l / 130.8 us gallons 5.1 l/100km / 45.9 mpg The averaged figure for the mfd displayed mileage was 4.96 My daily drive to work was about 6 km (~4 miles) on city streets, and the longest distance I've ever driven the car (one leg of continuous driving) is about 120 km (approx 75 miles). The average temps were spring 13 C / 55 F summer 17 C / 63 F fall 11 C / 52 F winter 5 C / 41 F with one cold snap where the temps were below freezing for about a week. As far as driving technique goes, I do pulse and glide, and don't accelerate toward red or soon to be red lights, but if I'm cold I'll use the heat, and if I'm hot or the windows are fogged due to humidity (at or near 100% in this neck of the woods for most of the year) I'll use the a/c. If I'm in a hurry, I may drive a little faster than I should. I've been running tire pressures of 38/36 psi. So not stellar by any means, but pretty good considering all of the short trips.