Best cheapest used 4WD or AWD that gets 25+ mpg on highway

25 mpg and 4WD puts you into Rav4, CRV, or another brand of small SUV. And these vehicles just barely get 25 mpg. You could get a small, mid size, and even a Toyota Camry with FWD that would all get much better than 25 mpg on the highway. A FWD sedan with winter tires could be a more comfortable and economic commuter vehicle. You pay a big price for 4WD in terms of reduced mpg.