Why a car history check matters more now AI can fake adverts
AI tools can now write a convincing advert, make photos of a car that doesn't exist and put a fake face on a video call. What they can't change is the car's official record. Here's how to use it.
By Natalie Pilling
Car enthusiast
Updated
First published
Quick answer
AI can now write a convincing advert, generate photos of a car that doesn't exist and even fake a seller on a video call. It can't change the official record. A free report shows the car's logbook details so you can compare them with the advert, then the full report checks finance, theft, write-offs and mileage.
Key takeaways
- AI makes a fake advert look real, so how an advert looks no longer tells you much.
- Official records on finance, theft, write-offs and MOTs can't be edited by a seller.
- Check the car for free before you travel, and get the full report before you pay.
See what CarCanny finds on the car you're looking at.
How are scammers using AI to sell used cars?
Scammers use AI to make fake car adverts look as real as genuine ones. The spelling mistakes, blurry photos and odd wording that used to give a scam away are gone.
- Photos: image tools can make realistic pictures of a car that doesn't exist, or change the colour, plates or damage on a real one.
- Adverts: chatbots write fluent, detailed adverts in seconds, often copied from a genuine listing for the same model.
- Sellers: voice cloning and face-swapping can put a convincing "seller" on a phone or video call.
- Paperwork: fake service records, invoices and logbook photos are easier than ever to make.
Why can't AI fake a car's history?
A car's history isn't stored in the advert. It's held by the DVLA, the MOT testing service, finance companies, the police and insurers, and a seller can't edit any of it.
That's why a history check is more useful now, not less. When you can't trust the photos or the person on the call, the record is the one thing that hasn't been made up. Scammers know this, so they often copy the reg of a genuine car of the same make and model. Your job is to check that everything in the advert matches the record for that reg.
What does the free report show?
The free report shows the car's make, model, colour and engine from the DVLA, so you can tell whether it's the car in the advert before you make the trip. You only need the reg: no account and no card.
| What it shows | Why it matters with a faked advert |
|---|---|
| Make, model and colour | A mismatch can mean the photos or the plate belong to a different car. |
| Engine, fuel and CO2 | Checks the advert's engine claims. CO2 also affects road tax on many cars. |
| Age and first registration | Confirms the real year, which fake adverts often round up. |
How do you compare an advert with the official record?
Put the advert and the free report side by side, and check each claim the seller makes against the record.
- Year: the record shows when the car was made and first registered. A fake advert often makes a car sound newer than it is.
- Colour: if the photos show a different colour from the record, the photos may be of another car, or the plate may be cloned.
- Engine and fuel: check the engine size and fuel type match the advert.
A mismatch isn't proof of a scam, as sellers make honest mistakes. It tells you exactly what to ask about before you travel.
How do you check a car advert that might be fake?
Get the reg
Ask the seller for it if it's not in the photos. A seller who won't share it is a warning sign.
Get the free report
Enter the reg on CarCanny. You'll see the car's logbook details straight away.
Compare it with the advert
Check the year, colour and engine in the advert match the record. Ask the seller about anything that doesn't.
See the car in person
A video call isn't enough, as faces and voices can be faked. Check the V5C logbook and the VIN on the car match.
Get the full report before you pay
Unlock it from the same page and check finance, theft, write-offs and mileage before any money changes hands, including a deposit.
What does a CarCanny full report check?
CarCanny's full report checks mileage, finance, write-off and stolen, plus 14 more. All 18 checks and an AI-powered verdict.
| Check | The question it answers | In the free report? |
|---|---|---|
| Logbook match | Is it the car in the advert? | Yes |
| MOT status | When's its next MOT due? | No, full report only |
| Mileage | Clocked to hide wear? | No, full report only |
| MOT history | Bills its MOTs warned of? | No, full report only |
| Finance | Does a lender still own it? | No, full report only |
| Recall | A safety fix still due? | No, full report only |
| Write-off | Written off, worth less? | No, full report only |
| Value | Asking price too high? | No, full report only |
| For sale | Asking prices right now? | No, full report only |
| Sold | What cars like this sold for? | No, full report only |
| Demand | Do cars like it sell fast? | No, full report only |
| Stolen | Could police take it away? | No, full report only |
| Tax | Declared off the road? | No, full report only |
| Keepers | Many owners, fast? | No, full report only |
| Plate changes | A new plate hiding its past? | No, full report only |
| Scrapped | Scrapped, then sold on? | No, full report only |
| Imported | Pricier to insure and fix? | No, full report only |
| Exported | Meant to have left the UK? | No, full report only |
Every free report answers logbook match, and shows the value as a price range if you ask for it by email. If the DVLA record shows the car was scrapped, the free report tells you not to buy it. The full report answers all 18.
The verdict sums the checks up and isn't one of them. Nor are the car's details, such as its make and CO2: only the logbook match, which sets them against the V5C, counts as a check.
You unlock the full report from the free report page and pay once with no account, and there's no subscription. We email you a link to the report when it's ready, so you can open it again at the viewing or show it to the seller.
Who writes the verdict in a CarCanny report?
AI writes the full report's plain-English verdict from the car's records and what's generally known about the model, except for a car you shouldn't buy.
The verdict is a headline and a short summary at the top of the report, red flags first. Below it, "The verdict in full" goes further: the car's records against what's generally known about the model, what to check at the viewing, and how to challenge the asking price, using only the trade and retail figures from the report's own valuation.
- The full report's verdict is labelled "Written by CarCanny AI from this car's records and what's generally known about this model. What's known about the model isn't a check of this car." The free check's "Look out for" card is labelled "Written by CarCanny AI from what's generally known about this model. It isn't a check of this car."
- The verdict isn't expert or professional advice. It sums up the 18 checks, and the checks are the record.
- A car recorded as stolen, scrapped or written off in category A or B gets "Don't buy this car.", written by fixed rules, not AI, and no verdict in full.
- If the AI can't write the verdict, the report shows one written by fixed rules instead.
The free report has a shorter verdict, also written by AI: a headline and a sentence or two on what's generally known about the car's model.
Frequently asked questions
Can AI fake a car history check?
A scammer can fake a screenshot or PDF of a check, but not the records behind it. Run the check yourself using the reg, rather than trusting one the seller sends you.
Is a video call enough to check a car is real?
No. Faces, voices and backgrounds can be faked on a live call. See the car in person, at an address you can check, before you pay anything.
What is a cloned car?
A cloned car uses the number plates of a genuine car of the same make and model, usually to hide that it's stolen. If anything in the record doesn't match the car in front of you, walk away.
Is the free report enough before buying a car?
It's enough to decide whether to go and see the car. It doesn't include finance, theft or write-offs, so get the full report before you pay.
Sources
- GOV.UK: Check a used vehicle you're buying(opens in a new tab)
- GOV.UK: Check the MOT history of a vehicle(opens in a new tab)
- Which?: 5 ways AI is being misused to fuel online shopping scams(opens in a new tab)
The ideas for our guides come from people on our team. We use AI tools to help research, draft and edit them, and the named author reads each one before it's published.
Written by
Natalie Pilling
Car enthusiast at CarCanny
Natalie is a senior product engineer at vlayer, the company behind CarCanny.
