This Prius plug-in will feature an estimated electric vehicle cruise range per charge of 26.4 kilometers (16 miles), and when it comes to its mileage, it is tipped to average out at 61 kilometers for each liter under Japanese test conditions. Convert it to miles per gallon, and you have a whopping 143 mpg figure to toy around with. Needless to say, such numbers will depend on the kind of road conditions as well as your driving habits, so it remains to be seen just how it is like in the US and Europe should the Prius PHV make its way here. Would your next vehicle be a plug-in hybrid?