Yes, members can attend dealer only auto auctions. Attending dealer only auto auctions is one of the biggest benefits of having a used car dealer license. You can find dealer only auctions easily online. Two of the biggest dealer-only auctions are located online at www.adesa.com or www.manheim.com. Both of these used car dealer only auto auctions are great sources for used cars. Some used car dealer only auto auctions sell up to ten thousand used cars per day..!