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Ten years ago, shopping for a used car meant driving to six dealerships on a Saturday and pretending to enjoy it. Now you can compare 200 listings before your coffee goes cold. The website you choose decides more than how convenient the process feels, though. It shapes the price you pay, the paperwork you sign, and how much help you get when the transmission starts slipping 400 miles later.
Here’s a practical rundown of the best websites to buy used cars, what each one is genuinely good at, and where the traps tend to hide.
Marketplace or retailer? Know which one you’re on
Most used-car sites fall into three buckets, and mixing them up is how people get burned.
- Retailers (Carvana, CarMax, most franchise dealers) own the car. They handle the title, the paperwork, and often a short warranty.
- Marketplaces (Autotrader, Cars.com, CarGurus, Facebook) just host the listing. The seller is whoever answers the phone, and that might be a licensed dealer or a guy flipping cars out of his driveway.
- Auctions (Copart, IAA, eBay Motors) sell as-is, usually with no test drive and no return.
Everything else, from fees to return policies, follows from that distinction.
Carvana: the fully online purchase
Carvana built its reputation on not making you sit in a finance office. You browse, get financing terms in the checkout flow, and the car arrives on a flatbed, sometimes within a day or two in bigger metros. The 7-day, 400-mile return window is the real draw; it gives you time for a proper pre-purchase inspection that no photo gallery can replace.
The trade-off is price. Carvana’s inventory tends to run a few hundred to a couple thousand dollars above what the same car fetches private-party, and delivery fees vary by distance. Reading the itemized price breakdown rather than the headline number tells you what you’re actually paying.
CarMax: fixed prices and serious inventory
With roughly 240 stores and a national inventory north of 50,000 vehicles, CarMax is the largest used-car retailer in the country. Nothing is negotiable, which sounds like a downside until you’ve spent three hours watching a salesperson check with the manager. You also get a 24-hour test drive and a 30-day limited warranty.
You pay for the convenience. Independent pricing studies consistently put CarMax a few percent above market average, so if you’re financing through them, compare the APR against a credit union quote before signing.
Autotrader and Cars.com: the big listing boards
Both aggregate millions of listings from dealers and private sellers, with solid filters for mileage, trim, drivetrain and distance. Use them for reconnaissance: save a search, watch how long cars sit, and note what a 2019 RAV4 with 60,000 miles actually sells for within 100 miles of you.
The weak spot is lead quality. Post your phone number and you’ll get texts for weeks. Use a burner email and expect to screen sellers yourself.
CarGurus: is that price actually fair?
CarGurus scrapes dealer listings and slaps a deal rating on each one, comparing the asking price to similar cars nearby. A “Great Deal” label is not a guarantee, but the instant market value figure is a useful gut check when a seller insists the price is firm.
Click through to the dealer’s own site before you get attached. The listing and the actual availability don’t always match, especially on older inventory.
Facebook Marketplace and Craigslist: cheapest, least protected
This is where private-party bargains live. No fees, no middleman, and sellers who actually know the car’s history. It’s also where unlicensed dealers pose as owners to flip auction cars with rolled-back odometers. A few habits keep you safe:
- Confirm the name on the title matches the seller’s driver’s license.
- Meet in a police-station parking lot, in daylight.
- Never send a deposit for a car you haven’t seen in person.
- Ask why they’re selling, then ask again in a different way.
Sellers who get defensive about an inspection are telling you something. Walk, because there are other cars.
eBay Motors, rental fleets and auctions
eBay Motors earns a look for classics, project cars and anything you’d struggle to find locally. Buyers get limited vehicle protection, but most purchases are still sight unseen, so budget for a third-party inspection or a plane ticket.
Rental company sales arms (Enterprise, Hertz, Avis) sell 1 to 3-year-old cars with 30,000 to 60,000 miles, fixed pricing and maintenance records on file. Selection skews toward sedans and small SUVs, and you won’t find many manual transmissions or niche trims.
Insurance auctions like Copart and IAA sell salvage and theft-recovery vehicles at genuinely low prices, but the learning curve is steep and fees add up fast. If that route interests you, read up on how to buy a salvage car without inheriting a money pit before you register to bid.
Screen any listing in 20 minutes
Wherever you found the car, the same checks apply. Request the VIN and run a history report. Ask for a photo of the door jamb sticker, which shows build date and paint code. Get a pre-purchase inspection from a mechanic you chose, not one the seller recommends.
Dealers earn their margin on the back end as much as the sticker, so before you sit down to sign, know what to say to avoid hidden car buying fees, and skim the 11 red flags of car dealer scams so the pressure tactics feel familiar instead of surprising.
Buying remotely adds a layer of risk. If the car is three states away, these tips for buying a car online cover the deposit, shipping and inspection order of operations.
Sort out financing before you browse
The best website in the world won’t help if your loan runs 18% APR over 84 months on a seven-year-old sedan. Get pre-approved by a credit union first. You’ll walk in with a rate and a hard ceiling, which makes any dealer financing offer easy to judge.
Bad credit narrows the options but doesn’t close them. Expect higher rates, bigger down payments, and lenders who cap the loan-to-value ratio, which in practice pushes you toward newer cars. Buying with bad credit works out fine when you shop the loan and the car at the same time rather than letting the dealership bundle both.
One last figure worth running before you commit: total cost of ownership. Insurance on a two-year-old pickup can run double what the same money buys on a sedan, and a set of tires on an AWD SUV stings. Pull quotes, add fuel and maintenance estimates, and let the numbers break the tie between two cars you like equally.
