We looked at both of the Ford C-Max models. We decided on the Energi.
Since the Energi comes with heated leather seats you really need to compare it to the SEL model which has the same. Base prices on those 2 are about $4500 apart. That difference is easily made up with the tax credit!! You do lose some cargo space in the Energi due to the bigger battery.
We are getting incredible gas mileage with our plug in Energi. We have driven 2000 miles since purchasing it in April. It came with the original 14 gallon dealer's tank. We have only purchased an additional 7 gallons of gas, and we still have most of it in the tank!! We are averaging between 125 to 135 mpg!! We do lots of errands of 20 miles or less, and then plug in again. If you were consistently driving much further between charges, then your gas engine would kick in more than ours does!
We have been able to plug in at all 3 campgrounds we have towed it to. One was a county park, one was a state park, and one was a National park. You just have to position your RV so you have enough cord to plug in, since Ford does not recommend you use an extension cord.
Ford also just sent us an additional $775 because they have adjusted their projected fuel economy down a couple of mpg!!! Laughed all the way to the bank!! :)
It is easy to tow and has become our favorite daily driver while the minivan and truck sit in the driveway!! Do be sure to install a charge line with either model.
We would highly recommend the plug in C-Max Energi over the regular C-Max hybrid!!