fueleconomy says:
1996 subaru legacy wagon AWD 2.2L 19mpg city 26mpg highway, 22 combined, old EPA is 22/29!, and new EPA matches what users report.
So don't expect to save by switching car... Stick with it and change when you can afford a decent car instead. Good luck with that because Subies are solid cars, especially a 2.2L engine won't die unlike 2.5L which have headgasket issues.
Priuses get 47mpg driving like a pig in mountains and do have a lot of space. If you want ultra small with similar MPG, get a 3 cylinders geo metro beater or a toyota echo as a 2nd car.
For FE, did you start by an engine tune-up... new filter, new spark plugs, plug wires, air filter, synthetic oil with low 1st number like 5W30 or 0W30 instead of 10W30?
If you switched from 20mpg to 26mpg by driving habits alone, maybe you're already stuck with a car yielding poor MPG, and the tune up would help, esepcially if you find what is making it inneficient.
__________________
__________________
|