Where to search for used cars and what each source shows you

Used cars are listed in five main places, and each one shows you different inventory. Dealership websites (both franchised and independent lots) let you filter by price, mileage, and features, but you see only what that dealer has in stock. National marketplaces like AutoTrader, Cars.com, and Edmunds pull listings from thousands of dealers and private sellers, so you can search across your whole region at once. Facebook Marketplace and Craigslist connect you directly to private sellers, which often means lower prices but no dealer protections. Manufacturer certified pre-owned (CPO) programs through brand websites show only that brand's vehicles, inspected and warrantied by the maker. Auction sites like Copart and IAA sell vehicles from insurance companies and fleet sales, usually at lower prices but with limited inspection access.

Start with a national marketplace if you want to see everything available in your area at once. Use a dealership website if you want to focus on one lot's inventory or a specific brand. Go to private sellers if you have found a specific vehicle and want to negotiate directly. Each source requires different research steps, which we cover below.

Key Takeaways

  • National marketplaces like AutoTrader and Cars.com show you thousands of used cars from multiple dealers and private sellers in your area, sorted by price and mileage.
  • Set your search filters to your actual budget, desired mileage range, and must-have features before you start, so you do not waste time on vehicles outside your needs.
  • Check the vehicle history report (Carfax or AutoCheck) before you contact the seller, because it reveals past accidents, title problems, and service records that affect the car's value.
  • Get a pre-purchase inspection from an independent mechanic before you buy, because dealer inspections and online listings do not catch all mechanical problems.
  • Compare prices for the same model across multiple listings to understand what that car should cost in your market right now.

How to set search filters that actually narrow your results

Most people set too many filters at once and end up with zero results, or set none and get overwhelmed by thousands. Start with three: price range, mileage, and distance from your location. On AutoTrader or Cars.com, enter the maximum price you can afford, the maximum mileage you will accept, and how far you are willing to drive. This alone cuts the list to a manageable size.

After you have results, add one more filter at a time. If you need a specific body type (sedan, SUV, truck), add that. If you need a certain number of doors or seats, add that. If you need all-wheel drive or a specific transmission, add that. Do not filter by color, trim level, or minor features — these narrow your options too much and you may miss a good car because it is the wrong shade of blue.

Save your search on the marketplace site. Most platforms let you create an alert that emails you when new cars matching your filters are listed. This is faster than checking the site every day, and you catch new inventory before other buyers do.

Reading a listing and spotting red flags before you call

A good listing includes multiple photos (at least eight), the vehicle history report link, the exact mileage, service records, and the reason for sale. Read the title and description first. If the seller says "runs great" or "no mechanical problems" but does not mention the transmission, brakes, or engine, that is a red flag — they are hiding something. If the listing says "as-is" or "no warranty," the seller knows there is a problem.

Count the photos. Fewer than five photos usually means the seller is hiding damage. Look for photos of the interior, undercarriage, engine bay, and all four sides of the car. If you see only the front and driver's side, ask why. If the photos are blurry or taken in poor light, that is intentional.

Check the mileage against the vehicle's age. A 2015 car with 180,000 miles is high-mileage; a 2015 car with 80,000 miles is average. If the mileage seems too low for the year (a 2015 with 20,000 miles), the car may have been stored or driven rarely, which can mean mechanical problems from sitting. If the mileage seems too high, the car has been driven hard and may need repairs soon.

Understanding vehicle history reports and what they tell you

A vehicle history report is a record of everything reported to insurance companies, police, and service centers about that specific car. Carfax and AutoCheck are the two main providers. Most marketplace listings include a link to the report, or you can buy one for $20 to $30 if the seller has not provided it. Do not skip this step.

The report shows accidents (major and minor), whether the title is clean or salvaged, how many owners the car has had, service records from participating shops, and whether the car was ever reported stolen or flooded. A car with one accident and a clean title is usually fine. A car with three accidents, a salvage title, or flood damage is a risk — the repairs may not be visible, and the car may have structural or electrical problems that show up later.

Pay attention to the title status. A clean title means the car has no liens and no major damage history. A salvage title means the car was declared a total loss by an insurance company at some point, even if it was repaired. A salvage title car is cheaper but harder to insure and resell. A branded title (flood, lemon law, or rebuilt) means the car had a specific problem — ask the seller exactly what happened.

How to compare prices and spot overpriced listings

The same model year, make, and mileage range should cost roughly the same across different listings. Use the pricing tool on Edmunds or Kelley Blue Book (KBB) to see what that car should cost in your area. Enter the exact year, make, model, mileage, and condition (good, fair, or poor). The tool shows you a price range — that is what dealers are asking for that car right now.

Compare at least three listings for the same model. If one listing is $3,000 cheaper than the others, there is a reason — ask what it is. If one listing is $3,000 more expensive, the seller is overpricing or the car has low mileage or special features that justify it. Write down the price, mileage, and condition for each listing so you can spot patterns.

Dealerships typically price higher than private sellers for the same car, because they offer a warranty and have overhead. CPO vehicles cost more than regular used cars but come with an extended warranty and have been inspected by the manufacturer. Auction cars cost less but may have unknown mechanical problems. Factor these differences into your comparison.

Contacting sellers and scheduling inspections

Before you contact a seller, have your questions ready. Ask about the service history, any accidents or repairs, why they are selling, and whether the car has been in an accident or had major work done. Ask for photos of specific areas if the listing does not show them — the undercarriage, engine bay, interior condition, and any dents or scratches. Do not commit to visiting until you have answers.

When you are ready to see the car in person, schedule a time during daylight so you can see the condition clearly. Bring a friend or family member with you. Bring a flashlight and a tire pressure gauge. Check the tire tread depth, the condition of the brakes and suspension, and whether all the electronics work (windows, locks, air conditioning, radio). Listen to the engine when it starts — it should not knock, rattle, or smoke.

Before you buy, take the car to an independent mechanic for a pre-purchase inspection. This costs $100 to $200 and takes one to two hours. The mechanic checks the engine, transmission, brakes, suspension, and electrical systems and gives you a written report. This inspection often finds problems that are not visible to a buyer, and it gives you information to negotiate the price down or walk away.

Deciding between private sellers, dealerships, and CPO programs

Private sellers usually price lower and are willing to negotiate, but they offer no warranty and no recourse if something breaks the day after you buy. Dealerships charge more but often include a short warranty (30 to 90 days) and have already inspected the car. CPO programs cost the most but include an extended warranty (usually three years or 36,000 miles) and the manufacturer stands behind the inspection.

If you have a limited budget and are comfortable taking on risk, buy from a private seller and get a pre-purchase inspection. If you want some protection and do not mind paying more, buy from a dealership. If you want the most protection and can afford it, buy a CPO vehicle. Each choice trades price against peace of mind.

Frequently Asked Questions

Should I buy from a private seller or a dealership?

Private sellers are usually cheaper and more willing to negotiate, but dealerships offer a short warranty and have already inspected the car. If you are comfortable with risk and want the lowest price, buy from a private seller and get a pre-purchase inspection. If you want some protection, buy from a dealership.

What mileage is too high for a used car?

There is no single answer — it depends on the car's age and how well it was maintained. A 2015 car with 150,000 miles is high-mileage but not necessarily bad if the service records show regular maintenance. A 2015 car with 50,000 miles is low-mileage. Check the vehicle history report and have a mechanic inspect any car with over 100,000 miles.

Do I need a pre-purchase inspection if the dealer says the car has been inspected?

Yes. Dealer inspections are often quick and do not catch all problems. An independent mechanic's inspection is more thorough and gives you a written report you can use to negotiate the price or walk away. It costs $100 to $200 and is worth it.

What does a salvage title mean and should I buy a car with one?

A salvage title means the car was declared a total loss by an insurance company at some point, even if it was repaired. Salvage title cars are cheaper but harder to insure and resell. Only buy one if you have had a mechanic inspect it thoroughly and you understand the risks.

How long does it usually take to find a used car?

If you know exactly what you want and have a clear budget, you can find a car in one to two weeks. If you are flexible on features or budget, it may take three to four weeks. Set up search alerts on marketplaces so you see new listings as soon as they are posted.