The reality is that your car is worth what someone else is willing to pay for it. The trade puts the value of an XD Fairmont ESP at between $1700 and $3800, depending on its condition. A car such as yours, however, may be worth more on the collectable car market -- if you are prepared to wait for the right person to come along. A one-owner, low-mileage XD Fairmont Ghia ESP in tiptop condition could make as much as $5000-$8000 -- but don't bank on it. People who own cars that are potential collectables often speculate that they will get a price higher than the market value. Some will, but most are disappointed when the phone fails to ring. If you want to go down that road, try advertising in one of the specialist classic car magazines.