1. eBay Motors: eBay Motors is a popular marketplace for buying and selling used cars online. You can find used car auctions on eBay Motors under the "Vehicles" category.
2. Autotrader: Autotrader is another well-known platform for used car sales and auctions. They host regular online car auctions, where you can find used vehicles at competitive prices.
3. Manheim: Manheim is a leading wholesale used car auction company. While their auctions are often for dealerships and industry professionals, you may find some open to the public through their "Simulcast" platform.
4. CarsDirect: CarsDirect offers online car auctions for both new and used vehicles. They work with multiple dealerships and provide transparency in the car-buying process.
5. IAAI (Insurance Auto Auctions): IAAI is an online auction platform for salvage and damaged cars. These vehicles are often available at great discounts and can be a good option if you're willing to do some repairs.
6. Copart: Copart is another platform for salvage and damaged car auctions. They offer a variety of vehicles, from repairable cars to parts-only vehicles.
7. Bring A Trailer: Bring A Trailer is an online auction platform specializing in classic, collector, and enthusiast vehicles. While some cars are offered with a reserve price, others go to the highest bidder.
8. Facebook Marketplace: Facebook Marketplace sometimes features used car auctions, especially for private sellers. Keep an eye on local car-related groups and pages.