Car auction!!!!!!!!!!!!!!!!!!?

I want some estimation on what you think that this car would sell for at an auto repo auction. It's an auction every week that sells approximately 300 cars each week. I am looking at a 2002 jaguar x-type with 86,088 miles on it. Usually the cars sell under their market prices, but what should it sell for......... we previously looked into an infiniti qx56 that was worth 30,000 but sold for 21,000..... so i don't have any guesses