July 5, 2017.... The owner has instructed me to offer this car for $21,000.00. 1978 Cadillac Eldorado Biarritz, two owner, loaded, Low mileage is documented by the yearly registrations from 1978 to current. The original owner transferred ownership of it to the current owner shortly after it was purchased. The current owner used it for 1 road trip to Pennsylvania and since then uses it sparingly during the summer, then it is put back into storage till the next summer season.