Buying a car from local Auction, what are the benefits and what should I look out for?

Question by Gifted and Gracious: Buying a car from local Auction, what are the benefits and what should I look out for?
A neighbor and I are going to an actution 2 check out cars. He told me cars are signifcantly cheaper there. Is This True?
The Model Im looking 4 is a 2000 Chevy Impala or a 1996-2000 Cadillac DeVille, he said both would run about 1,500, even tho average price for both is 4-6thousand. is there a possiblity of finding a 2000 imapala in good shape for 1500?
Also what are the

Japanese Car Auctions