I suggest getting a toyota or honda. early 90s is fine. You will get good gas milage, parts are easy to find. However, certain parts can be expensive, you will most likely go to a junkyard and get a used one instead of new. Alternators on a foreign car are expensive.
But, as long as you do normal maintainence they will last forever, well, at least in WI until the sruts rust out. I've seen toyotas and honda go over 300k, they ran fine, just the body wouldn't handle 15+ years of WI winters.