2004 Alero or Grand Am with the 2.2L Ecotec.
depreciation would set them to be around 8k right now
they came with either 2 or 4 doors
they are all FWD
it’s a 4-banger. It will be excellent on gas. (my 2.4 gets about 350 thruway miles per 12 gallons. not the best, but it’s still pretty good. the 2.2L Ecotec is a newer engine and should be better on gas than the older 2.4L)