The following membership site has received the majority of number one reviews from specialistauctiontips.com subscribers. I recommend you check it out:
CarAuctionInc.com database : The best Car auction site there is, frankly.
Rating:
One time payment and great database
The following membership government auction sites are also VERY good and definitely worth checking out. I’ve subscribed to many services throughout my years in this market, and in my opinion these are the best of them all:
Governmentauctions.org
Average User Rating: 
This is a very useful service that come with a range of additional auction listings. They also list government auction events in Canada as well as University auctions across the US. Members have also recently started to benefit from its extensive listings of foreclosure properties – great savings to be made on these.
Seizecars.com
Average User Rating:
SeizeCars offers an affordable service that covers a long list of auctions that is held throughout the country for a number of goods. This is good as a standalone service or to compliment other subscriptions which you may already have. The user feedback is excellent.
Cars for Cheap
Average User Rating:
Cars for cheap is a service that is dedicated exclusively to car auctions. If you’re looking for cheap vehicles this is definitely a service to consider. Although not as comprehensive as other services, it does also include listings of bank auto auctions.