On the Toyota Prius Plug-in the charging port is located just behind the gas cap on the right rear of the car. On the Ford C-Max Energi the charging port is located just front of the driver’s door. The volt places it in the same location. On the Nissan Leaf the charging port is located at the front of the vehicle, with a larger lid that covers both the J1772 level 2 port and also the quick charge port found on Leaf SLs.
When my wife and I were first researching the Energi, she was very concerned that she might forget to disconnect the charger from the car before backing out of our garage. When she discovered that it was located next to the driver’s door, her concern decreased. To me, it seems like the location on the Prius Plug-in is very poor. Ford researched locations and decided to use the same location as the Volt.