What should I do if I found out that the car I bought for $26,000 is only worth $13,000?

I found out that my new 2013 car that I brought for $26,000.00 is only worth $13,000.00 today. I feel stuck I never thought it would be so hard to trade in a brand new car. I don't think the dealer was fair with me they should have let me know that Suzuki was leaving America. I would have never got this car if I knew that and I already spent over $6,000.00 on this vehicle including the cost of tags and sell tax. I just don't think it’s fair how the deal was handled and the fact that someone can go and buy the same brand new car for $13,000.00 and I am upside down $9,000.00 just to trade it in. Finding parts for this car would even be difficult.