Replying to Buying a Car.

Ok well I had a 1993 Subaru Legacy but it keeps breaking down and I'm not gonna waste anymore on it so I was thinking about buying a new car. I will only be able to afford a used car preferably under $7000. I will probably have to take out a loan is this a good idea or should I save up for awhile? I would like another Subaru but I'm open to other cars. I want it to be able to drive well is snow and I would like good gas mileage since I usually drive around 100 miles a week. So I was hoping I could get some advice on some cars in that price range. I need it to last me a few years until I can afford a nicer car. I would like it to have cheap parts just incase it needs some fixing later on. So does anyone have some advice on cars, financing or anything else about buying a used car?