Yes, lets get that out of the way.
As I've said, I have a 2012 ford focus s (base model, manual trans, get 43 mpg regularly on highway). That's what I use when I don't need the truck.
Before that it was a '91 civic 5 speed (43 mpg as well). I gave it to my son.
That said, I need something that I can stretch out and sleep in with my girlfriend, can carry 6 people comfortably, can tow up to 10,000 lbs, and can regularly move things as big as a full size couch or fridge without rain ruining it, and the biodiesel move isn't off the table, it's just on hold until I find good sources of fuel.
I know a lot of people here find large vehicles distasteful. I hope those that do can overcome that feeling and accept the challenge of making an "obscenely large" vehicle greener than it otherwise would be. Come on! It'll be fun!
P.S. I love the Insight boat tail extension!