Welcome to EM
The Aveo-5 is a practical, efficient runabout. I've rented a few of them (all automatics, some sedans). My Brother bought one a few years ago and loves it.
I completely agree about the gearing. The mileage would certainly improve with bringing the revs down on the highway. It really needs a manual gearbox.
Enjoy the site, and best FE to ya...
RH77