Start with the right websites and tools for your budget

The most common places to search for used cars are Autotrader, Cars.com, Facebook Marketplace, Craigslist, and dealer websites. Each has different strengths. Autotrader and Cars.com let you filter by price, mileage, location, and features across thousands of listings from dealers and private sellers. Facebook Marketplace and Craigslist connect you directly to private sellers, often with lower prices but less buyer protection. Dealer websites show only that dealer's inventory but sometimes offer financing information upfront.

Start by setting a budget and sticking to it. Decide whether you want to finance through a bank, credit union, or dealer, because your loan approval amount affects what you can actually buy. Search within a realistic price range first—this narrows results from thousands to dozens. Most sites let you set price alerts, so you can be notified when new cars matching your criteria are listed.

Key Takeaways

  • Autotrader, Cars.com, Facebook Marketplace, and Craigslist are the main search platforms, each with different seller types and protections.
  • Filter by price, mileage, year, and location first to reduce thousands of listings to a manageable number you can actually review.
  • Check the vehicle history report (Carfax or AutoCheck) before contacting the seller to rule out major accidents, title problems, or flood damage.
  • Get a pre-purchase inspection from an independent mechanic before you buy, especially for private-party sales.
  • Compare the same car across multiple sites to understand fair market price in your area.

Filter by the features and condition that matter to you

Once you have a price range, narrow further by the features you actually need. Most search tools let you filter by body type (sedan, SUV, truck), transmission (automatic or manual), fuel type (gas, hybrid, electric), and mileage. If you need a car that fits your family or work, filter by seating or cargo space. If you live somewhere cold, all-wheel drive or good winter tires matter. If you have a long commute, fuel economy or electric range becomes important.

Mileage is one of the biggest factors in used car pricing. A five-year-old car with 40,000 miles costs more than the same model with 80,000 miles. Decide what mileage range you are comfortable with—there is no magic number, but cars with higher mileage need more frequent maintenance. Search within your range, then look at what similar cars cost at different mileage points to understand the price difference.

Check the vehicle history before you contact the seller

Before you call or message a seller, run a vehicle history report using the car's Vehicle Identification Number (VIN). The two main services are Carfax and AutoCheck. These reports show whether the car has been in major accidents, had flood damage, had multiple owners, or has an open recall. They also show service records if the previous owner took the car to a dealership. A history report costs $20 to $30 per report, but it can save you from buying a car with hidden problems.

Look for red flags: a title branded as "salvage" or "rebuilt" means the car was declared a total loss by an insurance company at some point. Multiple owners in a short time can signal mechanical problems. Flood damage is especially serious because it causes electrical and engine issues that may not show up when ready. If the report shows a major accident, ask the seller for details about the repairs.

Compare prices across listings to understand what is fair

The same make, model, and year can have very different prices depending on mileage, condition, location, and whether it is sold by a dealer or private party. Search for the exact same car (or very similar) on multiple sites to see the price range. A 2019 Honda Civic with 60,000 miles might be listed at $16,500 on one site and $18,200 on another—the difference usually reflects condition, service history, or dealer markup.

Use price comparison tools built into Autotrader and Cars.com, which show you the average price for that model in your area. If a car is priced significantly lower than similar ones, ask why—it could be a good deal, or it could signal a problem the seller is not disclosing. If it is priced higher, the seller may be asking for negotiation room or the car may have lower mileage or better condition.

Contact sellers and schedule inspections in person

Once you find a car that fits your budget and has a clean history report, contact the seller. Ask specific questions: Has the car been in any accidents? Do you have service records? Are there any mechanical issues? Why are you selling? For private-party sales, ask if you can take the car to an independent mechanic for inspection before you commit to buying.

Never buy a used car without seeing it in person and driving it. Meet the seller during daylight, bring someone with you, and take the car on a test drive that includes highway speeds and turns. Check the interior for wear, the exterior for rust or damage, and listen for unusual noises. If anything feels off, walk away—there are other cars.

Get a pre-purchase inspection from a mechanic you choose

For private-party sales, a pre-purchase inspection is worth the $100 to $200 cost. Take the car to an independent mechanic (not the seller's mechanic) who will check the engine, transmission, brakes, suspension, and other major systems. They will give you a written report of what they find and what repairs may be needed soon. This report gives you information to negotiate the price or decide whether to walk away.

Dealer sales often come with a warranty, which reduces the risk of major repairs in the first few months or years. Private-party sales usually do not, so the pre-purchase inspection is your only protection. If the seller refuses to let you inspect the car, that is a reason to look elsewhere.

Understand dealer versus private-party differences

Buying from a dealer means the car has usually been inspected and cleaned, and you have some legal protections if something goes wrong when ready after purchase. Many dealers offer a short warranty (30 to 90 days). The trade-off is that dealer prices are higher because they include the dealer's overhead and profit.

Buying from a private party means lower prices but no warranty and no legal recourse if the car breaks down the day after you buy it. Private sellers are not required to disclose known problems in most states, though some states have "as-is" sale laws that protect buyers. Always get a pre-purchase inspection for private sales and ask the seller directly about any issues they know about.

Frequently Asked Questions

What is a VIN and where do I find it?

A VIN is a 17-character code unique to each vehicle. You can find it on the driver's side of the windshield (visible from outside), on the driver's door jamb, or in the seller's listing. You need the VIN to run a vehicle history report on Carfax or AutoCheck.

Should I search for cars online or go to dealerships in person?

Online search lets you compare hundreds of cars across price, mileage, and features without leaving home. You can then visit dealerships or contact private sellers for the cars that interest you. Most people search online first to narrow their options, then visit in person to inspect and test drive.

What does "as-is" mean when buying a used car?

As-is means the seller is not responsible for repairs or problems that show up after the sale. Most private-party sales are as-is. Some states require sellers to disclose known major problems even in as-is sales. Check your state's used car laws, and always inspect the car and get a mechanic's report before buying.

How much should I negotiate on the price?

Private sellers often expect negotiation and may list a car above what they will accept. Dealers have less room to negotiate but may offer financing deals or trade-in value instead. Use your price comparison research to make an offer based on what similar cars cost in your area, the car's condition, and any repairs the mechanic found.

Can I return a used car if I change my mind?

Most private-party and dealer sales are final once you sign the paperwork. Some dealers offer a short return window (usually 3 to 7 days), but this is not standard. Read the sales agreement carefully before you sign. If you are unsure, ask the seller or dealer about their return policy before you commit.