what would the price be of a 2001 gmc yukon denali at an auto auction?

Question

90,000 to 120,000 miles in good mechanical condition. 4x4

Answer 1

Whatever the highest bid gets to. Too many variables to just guess.
Could go for $5000, could go for $25,000, all depends on how much someone wants it.

Answer 2

I work at an auto auction. The auctioneer would try to start bidding 'round $10,000 but it wouldn't sell for that unless, like someone else said, somebody wanted it really bad.