Auction sheet tells the condition of the car when it is imported. Only 3 month old auction sheet is free for viewing, otherwise you have to pay for auction sheet.
Mostly cars without auction sheet are accidented vehicles, less than 1% are original.
If you like to gamble, buy a JDM without auction sheet.
Mostly, accidented/scrap/submerged vehicles are imported by dealers because they are cheap, and sold as new after major repair.