I have had my civic for a while now.
It gets as high as 48mpg.
I average around 39mpg.
It's not big on creature comforts... no cruse, no power steering, no power locks, no power windows.
It's got AC and a radio.
It also has over 200,000 miles on it.
Still runs strong.
I've done the timing belt once (time for another) CV axels, master cylinder, battery, alternator, and general mantance.. that's it!
I'm now debateing spending more money on another timing belt and to have the seat re-done.. don't know if it's worth it on a car this old, but it's paid for and runs great so I probably will... It's also bone stock.. no rice rocket here
Gas mileage and reliability.
Power steering would be nice... so would many comfort features.. but that adds weight and reduces MPG... it is also very slow.. no power.. again MPG