The Mercedes-Benz 300 W186/W189 (1951–1962) costs on average €685,557 on the European used-car market, based on 7 listings. Typical prices range from €309,000 to €836,180 depending on year and condition.

Factory data from 17 registrations in the Dutch vehicle registry (RDW open data)
| Year | Average price | Average mileage | Listings |
|---|---|---|---|
| 1956 | €836,180 | 58,883 km | 5 |
| 1953 | €309,000 | 44,257 km | 2 |
Market prices are averages of live European listings. Factory data comes from the Dutch vehicle registry (RDW open data).