( http://www.TFLcar.com ) The 2013 Ford C-Max Energi Plug-in Hybrid is capable of -- wait for it -- 100 MPG-E or miles per gallon equivalent. If you top off the gas tank and the battery, you can get over 600 miles cruising range. Those are impressive numbers. It's even more impressive when you consider that the electric only range is 21 miles. We tested the 2014 Ford C-Max Energi and found it to be basically the same vehicle as the regular C-Max with a little bit more heft and a lot of potential. From what we've seen so far, Toyota better upgrade their Prius Plug-in ASAP!