I put a lot of miles on any car and purchased soley on the gas mileage. Traded in my Element which now I wish I still had. After driving the Civic for 9 months now, I am not so thrilled. Gas mileage average 38-42 mph, but the car is not comfortable at all. The seats are hard and very limited adjustments to try and make them comfortable. No cup holders in back or arm rest in back. What was Honda thinking. Basically, I feel this is a way overpriced commuting machine. Not kid friendly, not long trip friendly. Honda also falls short in the "fun to drive" catagory. Corners horrribly, tire squeal. Listen, I don't drive like Mario Andretti. I was suprised at the poor handling.
It's Green.... 40-45 mpg/highway on a warm sunny day with no wind.