The price range for a 97 cadillac should be around 1200 to 3200 dollars depending on the condition the car is in. Some may go for more money if they are low mileage and in great shape.
You should check Kelley Blue Book for the price of a specified 1997 Cadillac. There were many different models produced by Cadillac that year. Also, note how many miles and what condition the car is in. This will help Kelley Blue Book give an accurate value.
It all depends on the model and condition of the vehicle . you can check some differnt web sites to get an idea of what they are going for other then that check kelly blue book resale values. they are the pros when it comes to used vehicle pricing.good luck.