1983 Cadillac Eldorado Biarritz - $18,750 - Milbank, SD - This is a spectacular 1983 Cadillac Eldorado Biarritz. It has only 15,217 miles on it! This is a one owner car with all service records, window sticker, service manuals, and all original keys. The car is amazing! This interior looks and smells new. The car just gleams in the sun. It starts runs and drives like new. This is one of the best ones out there!