I used to own a 92 Geo Metro hatchback. At that time in my life I did a lot of travel for work, sometimes commuting 100+ miles each way to an engagement for weeks on end. The company I worked for would pay for lodging, but commuting put a lot more cash in my pocket. Anyway, to the point, in mild weather when I did not have to run the AC, I would regularly get around 40-44 MPG commuting. However, the trade-offs for that kind of mileage include a spectacular 55 HP 3 cylinder engine, no airbags, and the feeling that just about every other vehicle on the road could squash you.