aveo info question

Were the 03-07 aveos made in different factories or anything? I've seen such varying stories about peoples experience with their aveos. I see people either happy with their cars and little to no complaints, a group of people who are gettinv bad gas mileage for some unknown reason, but otherwise happy, then a group that just has horror stories. Perhaps these are just the people who have found their experiences worth writing about, but I am curious if there is any trend regarding manufacturing or assembly.

gorilla p,
I checked into your inquiry of where the vehicles were manufactured across the different model years and I show Bupyong, South Korea for the years you indicated.
I hope this is helpful to you!
Sarah (Assisting Vanessa), Chevrolet Customer Service

Thank you for the quick reply.