Top 5 Online American Car Auction Sites

This guide compares five platforms US buyers use most when shopping through an American car auction: Copart, IAAI, Manheim, Adesa, and broker access through Carfast Express. We look at which sites work as an online public car auction for private buyers, where you need a dealer license, and how the leading American car auction sites compare on fees and inventory.

Access and Fees Comparison

1. Copart – Public Salvage and Insurance Car Auction

Screenshot of the Copart website

Copart is one of the largest salvage car auction websites in the United States, with online bidding nationwide. The catalog is mostly insurance and damaged vehicles with salvage title, rebuildable, repossession, and theft recovery status, plus sections with clean title.

Membership is open to private buyers. Without a dealer license, search shows roughly half the catalog. Some states and lots are hidden.

Vehicles sell as-is. The auction provides no warranty and does not cover hidden defects. The buyer accepts the lot in the condition listed on the site.

2. IAAI (Insurance Auto Auctions) – Copart Alternative for Insurance Vehicles

IAAI (branded as IAA) is Copart's main rival for damaged and insurance vehicles with salvage title. The catalog includes total loss, theft recovery, flood and hail damage, plus clean title stock.

IAAI offers TimedAuctions: online bidding that runs before the live sale. A lot typically stays open for bids for about 24 hours, and each vehicle has its own deadline. There is a reserve and a minimum starting bid; the first bid must exceed that amount. If a vehicle does not sell in TimedAuctions, it may move to regular live bidding.

Without a dealer license, the catalog is limited the same way as on Copart. In some states, a salvage title can only be issued to a licensed dealer. Check local DMV rules before you bid.

3. Manheim – Largest Wholesale Car Auction in the USA

Manheim serves dealers only. A private buyer cannot register directly. Entry requires an active dealer license and an AuctionACCESS account, the system dealers use for wholesale auctions in the United States and Canada. This is the country's largest wholesale network. Sites operate across states, and online bidding runs through Manheim Express. Inventory ranges from budget to premium, with heavy fleet and off-lease stock from corporate pools.

Buy fees and gate fee depend on lot price and location. There is no single public price list like Copart membership for private buyers. Manheim publishes MMR (Manheim Market Report), an estimate of average wholesale price for a specific model based on real sales on their auctions. Before bidding, a dealer checks MMR to see how high a bid still makes sense.

4. Carfast Express – US Online Auction Access Without a Dealer License

Carfast Express is a broker, not a separate auction. The service bids under its own dealer license, so clients without one see the full catalog on major platforms in all states, not the limited view from standard Copart and IAAI membership.

Two service formats:

Direct access (no bidding commission). Place your own bids on the largest US auctions. The participation plan includes bidding; no separate commission applies.

Brokered support (from $500). Specialists bid on your behalf and handle the deal. Good for buyers who lack time or experience to work the auctions on their own.

The right format depends on the buyer's experience and willingness to take responsibility for lot selection.

5. Adesa – Wholesale Auction for Dealers

Adesa is part of OPENLANE and serves dealers only. Like Manheim, direct access is closed to private buyers. Registration goes through AuctionACCESS and dealer license verification. The catalog includes many vehicles from corporate fleets, post-lease and rental returns, including late-model clean title units with service history.

Buy fees depend on lot price and site terms. There is no separate public member fee for individuals. Alongside Manheim, Adesa is the second major dealer channel when you need fresh inventory without salvage title exposure.

How to Choose a Platform

Dealer license. Without your own dealer license, Copart and IAAI are available directly, but some states and lots stay hidden. A broker such as Carfast Express opens the full catalog without your own license. Manheim and Adesa stay closed to private buyers without a license.

Vehicle type. Damaged and insurance vehicles go through Copart and IAAI. Clean title, fleet, and off-lease stock sit on Manheim and Adesa.

Condition assessment. Manheim and Adesa usually provide standardized condition reports. On Copart and IAAI, vehicles sell as-is, and buyers rely on photos and listing details.

How to Pick Up Your Vehicle

Vehicles from Copart, IAAI, Manheim, and Adesa rarely leave the lot under their own power. The lot may sit in another state. If you buy direct, line up a transport company in advance to haul the vehicle from the auction yard. Pickup windows are short. After that, storage fees start at $30 per day.

When you buy through a broker, the vehicle is picked up from the auction within three days, before storage charges kick in. Next stop: the partner terminal, export port, and delivery to your country. You can browse inventory from all major US car auctions on the Carfast Express website.