The main places to find used cars
Used cars are sold through five main channels: dealerships, private sellers, online marketplaces, auctions, and rental car companies. Each has different inventory, pricing, and what happens if something goes wrong after you buy. Dealerships often provide warranties and handle paperwork, but charge more. Private sellers usually price lower but offer no protection. Online sites let you search across all of these at once, while auctions and rental companies sell in bulk at set times.
The route you choose depends on what you need: speed, selection, price, warranty coverage, or convenience. Most people use a combination — they search online first to narrow down what exists in their area and price range, then visit dealerships or contact private sellers to inspect and test drive specific vehicles.
Key Takeaways
- Dealerships, private sellers, online marketplaces, auctions, and rental car companies each sell used vehicles with different pricing, inventory, and buyer protections.
- Online search sites like Autotrader, Cars.com, and Facebook Marketplace let you filter by price, mileage, location, and features across multiple sellers at once.
- Dealerships typically offer warranties and handle title transfer, while private sellers usually price lower but sell as-is with no recourse if problems appear later.
- Auctions and rental car sales happen on set dates and require cash or certified funds, so you need to know the schedule and inspection rules before you go.
Dealership inventory and what to expect
Used car dealerships buy vehicles at auction, from trade-ins, or from wholesalers, then resell them with a markup. Most dealerships list their inventory online before you arrive, so you can narrow down what they have in your price range and with the features you want. When you visit, the sales staff will show you the vehicle, answer questions about its history, and discuss financing or trade-in options.
Dealerships typically offer a warranty — often 30 to 90 days on mechanical parts, though this varies widely. They also handle the title transfer and registration paperwork, which saves you a trip to the DMV. The tradeoff is that dealership prices are usually higher than private sales because the dealer needs to cover overhead, staff, and the warranty they provide.
Before you visit, run the vehicle identification number (VIN) through a free report service like NHTSA or Carfax to check for recalls, accidents, or title problems. Ask the dealership for their inspection records and service history. If they can't or won't provide these, that's a red flag.
Private sellers and what to check before you buy
Private sellers — people selling their own cars — usually price lower than dealerships because they have no overhead and no warranty to cover. You buy the car as-is, which means if the transmission fails the day after you drive it home, you have no recourse unless you can prove the seller knowingly hid a defect.
To find private sellers, check Facebook Marketplace, Craigslist, Autotrader's private seller section, and local classified ads. Always meet in a public place during daylight, bring someone with you, and never hand over money until you've had the car inspected by a mechanic you trust. Many independent shops will do a pre-purchase inspection for $100 to $200 and will tell you what repairs are needed and what they might cost.
Ask the seller for maintenance records, the title (to verify they own it), and permission to run a VIN report. In most states, you can also request the vehicle history report from the seller or run one yourself through Carfax or AutoCheck. If the seller refuses to let you inspect the car or won't provide the title, walk away.
Online marketplaces and how to search efficiently
Sites like Autotrader, Cars.com, Facebook Marketplace, Craigslist, and eBay Motors let you search across dealerships and private sellers in one place. You can filter by make, model, price, mileage, location, and features like transmission type or fuel economy. Most sites show photos, the asking price, and a link to contact the seller or dealership.
Start by setting your search radius — how far you're willing to drive — and your maximum price. Then filter by the body style and features that matter to you. Read the full description and look at all the photos. If a listing has only one or two photos or vague descriptions like "runs great," contact the seller and ask for more details and pictures before you make the trip.
Many dealerships post the same vehicle on multiple sites, so you might see the same car listed on Autotrader, Cars.com, and the dealership's own website. This is normal. When you find a car you're interested in, note the VIN and run it through a free report service before you contact the seller. This takes five minutes and can save you from wasting time on a vehicle with a salvage title or multiple accidents.
Auctions and rental car sales
Auctions sell used cars in bulk on set dates. Copart and IAA are the two largest online auction sites for vehicles, though they primarily serve dealers and wholesalers. Some local auctions are open to the public. Rental car companies like Hertz, Enterprise, and Budget also hold regular sales of their off-lease vehicles, usually through their own websites or through auction sites.
Auctions require you to register, inspect the vehicle in person during the preview window, and bring cash or a certified check to pay if you win. You typically have 24 to 72 hours to pick up the vehicle after purchase. Auction vehicles are sold as-is with no warranty, and you don't get a test drive — you can only look at it and start the engine. This route works best if you know cars well or have a mechanic you can bring with you to the preview.
Rental car sales are often a better option for buyers new to auctions because the vehicles are usually well-maintained, have known service histories, and are often only a few years old. Check the rental company's website directly or search their name plus "vehicle sale" to find upcoming sale dates and inventory.
What to do after you find a car you want
Once you've found a specific vehicle, get a pre-purchase inspection from an independent mechanic before you commit to buying. This is the single most important step and costs $100 to $200. The mechanic will check the engine, transmission, brakes, suspension, and other major systems and will give you a written report of what's working and what needs repair.
Run the VIN through a free report at NHTSA.gov to check for open recalls. Then decide whether to negotiate the price based on the inspection results, walk away if repairs are too expensive, or move forward with the purchase. If you're financing, get pre-approved for a loan from your bank or credit union before you buy — this gives you a clear budget and lets you negotiate from a position of strength.
Before you hand over money, verify that the seller has a clear title to the vehicle. In most states, you can check this through your state's DMV website or by asking the seller to show you the title document. Never buy a car with a salvage title, flood title, or lien unless you understand exactly what that means for your ability to register and insure it.
Red flags that mean you should keep looking
Walk away from any listing or seller that shows these warning signs: the price is significantly lower than similar vehicles in your area, the seller won't let you inspect the car or have it inspected by a mechanic, the title is missing or the seller can't produce it, the mileage seems inconsistent with the vehicle's age, there are multiple accident reports on the VIN history, or the seller pressures you to decide quickly.
Also be cautious of vehicles with rebuilt or salvage titles unless you fully understand what repairs were made and have had a mechanic inspect the work. A salvage title means the insurance company declared the vehicle a total loss at some point, and while it can be repaired and driven legally, it will be harder to sell later and may be harder to insure.
Frequently Asked Questions
What's the difference between Autotrader, Cars.com, and Facebook Marketplace?
Autotrader and Cars.com are dedicated car sales sites with detailed filters and vehicle history reports built in. Facebook Marketplace is a general classifieds platform where private sellers and some dealers post cars. Autotrader and Cars.com tend to have more dealer inventory and professional listings, while Facebook Marketplace often has lower prices from private sellers but requires more caution about scams.
Should I buy from a dealership or a private seller?
Dealerships offer warranties, handle paperwork, and provide some buyer protection, but charge more. Private sellers price lower but sell as-is with no recourse if problems appear after purchase. Choose based on your budget, how much risk you're comfortable with, and whether you want the convenience of dealership paperwork handling.
How do I know if a used car has been in an accident?
Run the VIN through Carfax or AutoCheck to see reported accidents and insurance claims. Also have an independent mechanic inspect the car — they can often spot signs of accident damage or poor repairs even if the accident wasn't reported. Ask the seller directly about accident history; in most states, they're required to disclose major damage.
What should I bring to an auction preview?
Bring a mechanic if you can, a flashlight, a notebook, and the VIN of any vehicle you want to inspect. Check the engine, look under the car for leaks, start it and listen for unusual sounds, and test the brakes and steering. Take photos or video so you can review them later and compare multiple vehicles.
Can I return a used car if something breaks after I buy it?
This depends on where you bought it and your state's lemon laws. Dealerships often offer a short return window or warranty period. Private sales are typically final with no return option unless you can prove the seller knowingly hid a defect. Check your state's consumer protection laws and the dealership's return policy before you buy.