You might also consider a Hyundai Sonata Hybrid. I test drove one of those after the Volt and it was very nice with fantastic incentives (and an industry leading warranty). The Kia Optima Hybrid is the same car, I believe, but intended to be a more youthful style.
I looked at those larger models because after driving dozens of cars my wife finally said how she didn't understand why none of them matched the interior space of the Passat we were loaned while VW fixed our oilpan.
I told her that's because we are looking at the wrong segment! If I had known she wanted a mid-sized...anyway, best decision we've come up with is to give the JSW back and just make do with the eGolf and bug.
One final consideration is to wait for a generation or two of Audi eTrons, wait for this year's models to come off lease, or see if VW is going to bring some hybrids over here (they just killed the Jetta).