By the numbers: the 2012 plug-in Prius

Over six days of driving—limited to around-town trips—we put about 103 miles on a fleet-test Toyota Prius Plug-In, averaging 90.8 miles per gallon. In that time, we gave the Prius Plug-In five full charges and two partial ones, and according to the trip computer, we covered 77.7 miles in EV mode.