Used Car Buying Guide
What the record doesn't show — and what to look for before you hand over any money.
One in five used cars on UK roads has a hidden accident history. Not a category on the record. Not a flag on any check. Hidden.
Two reasons. The database insurers use to report write-offs is voluntary — not every insurer is signed up, so some damaged cars simply never make it onto the record. And many owners who have a bump don't claim at all. They don't want their premium to go up. They get it fixed quietly, pay cash, and move on. Two years later they sell the car. Clean record. Clean history. No trace.
Here's what the data can't tell you — and what you can find out for yourself.
Cat S, Cat N — recorded, reported, on the permanent file. But not all damage goes through an insurer. A car gets bumped. The owner takes it to a local bodyshop, pays cash, gets it fixed. No insurance claim. No category. No record.
That car's history is completely clean. And you'd never know.
Until you know what to look for.
When a car is damaged and repaired through an insurer, it gets categorised. The repair goes on record. Any future buyer can find it.
When the owner pays for the repair privately — cash to a bodyshop, no claim — nothing is recorded anywhere. The DVSA doesn't know. The insurance database doesn't know. No check in the world will surface it.
This is more common than people think. Owners avoid claiming because they don't want their premium to go up. Dealers buy and sell cars with cosmetic damage quietly repaired between transactions. The car looks fine. The data looks fine.
The repair might be fine too. Or it might not be. You can't tell from the data alone.
The listing photos are your first tool. Look at them properly — not for how the car looks, but for what they accidentally reveal.
Previous listing photos are better still. If the car has been on the market before, earlier photos sometimes show damage that's since been repaired. A dent in a rear quarter. A scraped bumper. Bodywork that looked different eighteen months ago.
Our full report surfaces the internet history of the car — previous listings, previous photos, previous prices. That's where the hidden story sometimes lives.
Artificial light hides everything. If the seller suggests an evening viewing, suggest a different time. If they push back on that, ask yourself why.
Walk around the car slowly and look at the gaps between panels — bonnet and wings, doors and door frames, boot lid and rear quarter panels. They should be even. Consistent. The same width all the way along. If one side is wider, or the gap tapers, a panel has been removed and refitted — or replaced entirely.
Look along the panels in low raking light. Crouch down and look from a low angle towards the car. A repaired panel often has a slightly different sheen — marginally more or less reflective than the panels around it. In direct sunlight this is almost invisible. In low angled light it stands out. Also look for colour matching — paint fades over time, and a replaced panel is often fractionally different in shade. Most obvious on white, silver and light grey cars.
This is the tell that amateur resprays leave behind. Look at the rubber seals around the doors and boot. Look at the plastic trim around the wheel arches. Look at the glass edges. A fine mist of paint colour on any of these surfaces means the panel next to it has been resprayed and the masking wasn't perfect.
Open the boot and look at the seams — the joins where panels meet. Factory seams are consistent, smooth, often with a bead of sealant that looks machine-applied. A repaired seam looks different — thicker, more uneven, applied by hand. In the engine bay, look at the bolts on the slam panel. If the paint around the bolt heads is chipped or missing, that panel has been off.
Different tyre brands on the same axle can indicate a quick fix after an impact. A wheel that sits at a slightly different angle to the others — hard to spot, but worth checking — can suggest suspension damage that wasn't properly addressed.
Not if it's been raining. You can see when it's been raining.
If the car is suspiciously clean. Just washed. Gleaming. Water still beading on the panels — walk away and come back another day. Or walk away entirely.
If you have a chamois in your pocket — and there's no reason you can't — ask if you can dry a panel before you look at it. A seller with nothing to hide won't mind.
You're not looking for perfection. All used cars have lived a life.
You're looking for things that don't match — and then asking why. The gaps, the paint, the seams, the seals. On an honest car, everything is consistent. When something isn't, that's the question.
If the seller gets defensive when you ask, you have your answer.
No damage history found. Clean internet history on this vehicle. No previous listings showing bodywork concerns.
Previous listing found showing different bodywork. This car appeared on AutoTrader in March 2024. The photos show condition that differs from the current listing. Worth asking the seller directly about the history of that panel.
Undeclared Cat S found. Structural damage is recorded on this vehicle. It was not mentioned in the listing. The data says one thing. The seller said another. We wouldn't be comfortable with our own people driving this one.
Not sure what Cat S, Cat N or Cat A means?
Run the check before you drive to the viewing. Know what the record shows — and what the listing history reveals — before you're standing in front of the car.