My 2012 Volt was purchased in mid January 2012. The last time I put gas in my gar was August 1st. Seven gallons topped it off. Today I still have 3 gallons left in my tank and am averaging 373.4 mpg for this tank. I've made three out of town trips. Otherwise I barely come in at 37 electric miles each trip I make in the morning and afternoon entirely on electric. I actually giggled this morning. My 10 year old grandson who I was taking to school ended up joining in as I pointed to one vehicle after another, laughing pointing, you use too much gas, you do to, you do and you do. I may have to put gas in my car before January 1st but it's my goal to make it until the new year without buying gas.
I traded a 2000 Mercedes AMG that got between 2 and 9 mpg during city driving. On the highway I got almost 16 mpg. I do not feel a pang for that really super fast car, especially the times I filled it up, which was every week. The thrill of driving this Volt is ever present and I still answer questions about it from other drivers on the road.
I'm 64, living in Florida, and giggling like my 10 year old grandson. It'd take a strong board to wipe the smile from my face for this car.
If I could, I'd buy each of my children one of these cars. Florida is one of the ideal states to drive this car in I imagine.
Overall I am now getting 151 mpg.