The book value that shows up for almost any Viper is peanuts! Don't ever trade one in if you can keep from it.
I was speaking to a Bankruptcy Attorney last night at the kids soccer try-outs and he said they just did a bankruptcy with a 1999 Viper. He said all the dealers around here they spoke to offered $15,000.00 on the high side for a buy bid.
He went on to say the court or the bank whomever sold it on eBay for $25,000.00 and they thought they did real good on recovery. But he felt they did okay based on what all the blue books showed at the time.
The only thing I can guess is since it was a bankruptcy, maybe the car was beat up and in real bad condition.