Verify
Buyer's guide
How to read a trust score and when to walk away.
How the trust score works
A weighted read of the seller's own disclosures
Excellent
Fully disclosed with strong history. Still get an inspection, but this one checks out.
Good
Solid disclosure with minor gaps. Worth a closer look in person.
Fair
Some unanswered questions. Budget for repairs and negotiate.
Caution
Meaningful risk signals. Only proceed with an independent inspection.
High Risk
Multiple serious red flags. Walk away unless everything checks out.
Title and paperwork carries the most weight, then accident history and mechanical condition, then records, ownership and paint. A single critical answer — a title not in the seller's name, one that isn't free and clear, an undisclosed lien holder, or admitted mechanical problems the seller won't describe — caps the score no matter how good the rest looks.
A "yes" with no explanation always scores worse than a described problem. Sellers who write out exactly what's wrong are the ones worth driving out to see.
A high score is not a substitute for an independent mechanic's inspection. It tells you which cars are worth paying for one.
The twenty questions
What each one is actually testing for
1
Are you the original owner?
Establishes how much of the car's life they can actually speak to.
2
If not, how long have you had it?
Under six months is the curbstoner tell — or they found a problem and want out.
3
Any mechanical problems?
The answer matters less than whether they'll describe it. A bare yes is worse than a detailed one.
4
Does the AC/Heater work properly?
Cheap to ask, expensive to discover. A compressor is $900–$1,500; a heater core can mean pulling the dash.
5
Do you have the service records?
The difference between a documented history and a story.
6
Do you have the Carfax report?
Lets you verify their other answers instead of trusting them.
7
Does it come with any warranty?
Changes who pays for the first big failure. Always ask if it transfers.
8
Is it Certified Pre-Owned?
A real CPO means a manufacturer inspection and factory-backed coverage — not a dealer's own sticker.
9
Has it been in any accidents?
Severity is everything. Ask which panels and whether airbags deployed.
10
Is the title under your name?
The single most important question on this list. If no, walk.
11
Free and clear title?
Anything encumbering the title blocks you from registering the car.
12
Any lien holders?
If yes, close at the lender's branch so the payoff happens in front of you.
13
How is the condition of the paint?
Cosmetic, but failing paint means the car lived outside — which ages everything else too.
14
Any blemishes?
Tests honesty as much as condition. Compare their list against what you find.
15
Are you flexible on your price?
Tells you whether to negotiate on price or on repairs.
16
When was the last oil service?
The cheapest maintenance there is. Someone who skipped it skipped everything else too.
17
When was the last major service?
Timing belts, transmission fluid, coolant. Overdue turns into four figures fast — and it becomes your bill the day you buy.
18
When was the last minor service?
Filters, plugs, an inspection. Regular small jobs are what a cared-for car looks like on paper.
19
When were the tires last replaced?
A set is $600–$1,200. Check the tread yourself and look at the date code on the sidewall — rubber ages even unused.
20
When were the brakes last replaced?
Pads are cheap, rotors and calipers are not. Listen for grinding on the test drive rather than taking the answer at face value.
Non-negotiable walk-aways
No price makes these worth it
Seller won't allow an independent inspection
There is no legitimate reason to refuse. It's the strongest single predictor of a hidden problem.
The title isn't in the seller's name
You're dealing with an unlicensed flipper, and you may never get a clean title.
"Title is coming in the mail"
Never hand over money without the physical title in front of you.
VIN on the car doesn't match the paperwork
Stolen, cloned, or built from two cars. Walk immediately.
Pressure to decide today
Urgency is a sales tactic. A good car will still be a good car tomorrow.
Cash only, meet in a parking lot
Legitimate private sellers will meet at a bank and do the paperwork properly.
What your budget buys
Purchase price only — insurance and repairs are on top
Budget$25,000
0in budget
0also trustworthy
$2,500repair reserve
Set aside roughly 10% of the purchase price for the first year of repairs and immediate maintenance on any used car — more if it's over 100,000 miles.
The order to do things in
1
Set a real budget
Purchase price plus 10% for repairs, and get an insurance quote before you fall in love with anything.
2
Read the disclosure first
The trust score and red flags tell you whether the drive out there is worth your Saturday.
3
Call before you go
Run through the generated questions. Half of the bad listings eliminate themselves on the phone.
4
Cold start and walkaround
Arrive early and insist the engine hasn't been warmed up. Use the checklist.
5
Test drive properly
Twenty minutes minimum, including highway speed and a hard stop.
6
Independent inspection
$100–$200 at a shop you chose, not one the seller recommended.
7
Negotiate from findings
Every documented defect is a line item you subtract from the offer.
8
Close at a bank
Especially if there's a lien. Get the title, bill of sale and signed odometer statement.
Terms that cost people money
Salvage title
An insurer declared the car a total loss. Value drops 30–50% and full coverage is hard to get.
Rebuilt title
A salvage car repaired and re-inspected. Legal to drive, but repair quality varies enormously.
Title washing
Moving a branded title through states with looser rules until the brand disappears. A history report catches it.
Curbstoning
An unlicensed dealer posing as a private seller. Tell: the title isn't in their name.
Odometer rollback
Mileage wound back. Compare wear on the pedals, seat and steering wheel against the reading.
Out-the-door price
The total including fees, taxes and add-ons. Always negotiate this number, never the monthly payment.
Yo-yo financing
You drive off, then the dealer calls saying financing 'fell through' at a worse rate. Don't take a car home before financing is final.
Trust scores on CarXMarket are generated entirely from what the seller told us. Nothing here is independently verified, and a score is guidance rather than a professional appraisal or a warranty. Always commission your own pre-purchase inspection before buying.