I am very interested. Just started researching these recently, since we now have a daughter. May I ask what your highway MPG is...20? Any issues or problems?
If i recall correctly, cruising around 60-65, i can get 20-21mpg. My wife and i made a 2k+ mile round trip down to south carolina and came back through VA beach and we averaged 18.5 mpg. Obviously, that was all highway with a lot of mountains. Regarding issues or problems, i haven't had any major breakdowns. The only remaining maintenance that currently needs to be done is the rear brakes..
I'll shoot you a quick PM with my contact information if you have anymore questions.