How Much Is My Car Worth Now

I currently owe 22k on a car that is worth 16K, let me know if my plan is a good idea?

Brian asked:

I think the trade according to kind speak, around a car, am worth 12K. My current car worth is 12k trade value, becomes it a good idea, the trade fà ¼ r the other cars so that I only for instance 9k left on my current credit? Also is an option?