Fantastic little car. It is great on gas and handles very well for an economy car.
The car is unstable in the wind, it likes to get pushed around due to its height. However, it is not something that would have ever stopped me from enjoying this car.
The Fit also needs a transmission update. It has very short gears to optimize acceleration due to the lack of horsepower, which means at 75 mph the car is at 3800 rpm. I feel like an extra overdrive gear could benefit the Fit greatly.
The interior is way above the class of this car. Fit and finish is amazing. Other than the slight rattle, I foresee no issues. There are not that many frills, but what is there is perfect. USB adaptor, aux input, lots of cup holders, cold AC, comfortable seats, lots of visibility and TONS of storage room. The Fit's interior is second to none.
The Fit is not a race car. It does not have a lot of horsepower or torque. It was designed to get good mpg's, and it does that very very well. I have been averaging 36 mpg, and it's not even broken in yet.
If what you are looking for is a great car that gets good gas mileage, is superbly versatile and fun to drive; look no further than the Honda Fit Sport.