18. BMW E39 5-Series
Once famous as the best executive sports sedan in the world, the BMW 5-Series E39 they offered from 1995 to 2003 is now affordable. In fact, you can buy most models for $3,000 or less. Interestingly, this 5-Series still looks elegant and contemporary.
If you find the 540i equipped with a V8 engine, it will still provide you with plenty of driving excitement and performance. Of course, the maintenance could be a bit expensive, as for all used luxury cars.