The federal tax credit for plug in vehicles expired December 31, 2013, and is not currently available. Congress did not renew the credit, along with numerous other tax breaks, including the provision that allowed for the 30% credit relating to alternative vehicle refueling property. The sales tax credit is also no longer applicable, but as you live in California, I doubt it would come into play for your situation. Unless Congress changes their mind and renews this credit this year (which I personally doubt), I would remove the $4,001 credit from your calculation. I thought I had heard Ford lowered the MSRP on the 2014 FFE by about $4k, which was to help alleviate this issue?