1000 miles on a 13 gallon tank is 76 MPG. they suck at teh maths. that's probably with a plug-in boost, too. everyone gets all hot on their modded prius like it magically gets some outrageous mileage figure, and they conveniently "forget" the energy they put in when they plugged it in. it's no more valid than the posted in-town figures that don't take into account energy drained from the batteries and not replenished from the gas tank during the course of the test (meaning the car used more energy than the test accounts for).