I enjoy the Aveo, bought it for fuel economy. I have checked mileage 3 times, 50% city & 50% hwy driving, air conditioning used all the time, mileage came out to be 34+ on all checks with air conditioning going all the time. Very pleased, quite comfortable, very economonical...
Aveo with the five speed manual is quite peppy. If possible, do away with double OHC, which would help MPG..