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Everything we know about checking cars, written down. No jargon, no scare tactics: just what to look for and why it matters.

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A used car checklist you'll actually use

Most checklists are ninety items of padding. These are the checks that actually stop people buying the wrong car.

7 min read · Updated 2 September 2026
  1. MOT

    How to check a car's MOT history (and actually read it)

    The test record is free to look up and most buyers never read past the pass/fail line. The interesting part is everything underneath it.

    6 min

  2. Fraud

    Car clocking: how to spot a wound-back odometer

    A £100 gadget can take 60,000 miles off a digital dash in minutes. The paper trail is much harder to wind back.

    5 min

  3. Registrations

    UK number plate formats, explained

    A reg plate quietly tells you where a car was registered and roughly when. Here's how to decode all five formats still on the road.

    5 min

  4. Write-offs

    Cat N and Cat S write-offs, explained

    A write-off marker isn't automatically a death sentence; sometimes it's a cracked bumper on a slow news day for the insurer.

    6 min

  5. Tax

    Car tax, explained without the spreadsheet headache

    Three different tax systems are running at once, and which one applies depends entirely on when the car was first registered.

    6 min

  6. Stolen

    How to check if a car is stolen (before it's your problem)

    If you buy a stolen car, the police return it to the real owner and you're left chasing a seller who has vanished. Prevention is everything.

    6 min

  7. Paperwork

    The V5C logbook: what it proves, and what it really doesn't

    Printed on the front of every V5C: "this document is not proof of ownership". Most buyers never read that line.

    6 min

  8. Finance

    Outstanding finance on a used car, explained

    On HP and PCP the debt follows the car, not the seller. Buy one that still has finance owing and the lender can repossess it from your driveway.

    6 min

  9. Electric

    Buying a used electric car without the guesswork

    On a used EV the battery is the engine, the gearbox and half the price all at once. Judge the car on that and the rest gets simpler.

    7 min

  10. Imports

    Imported cars: what the paperwork does and doesn't tell you

    An import can be the same car for less money, or a spec you can't insure with a history that stops at the border. Knowing which is which is the whole game.

    6 min

  11. Registrations

    Transferring a private number plate, step by step

    Moving a personal plate isn't hard, but one missed step (an expired retention, a car that's not taxed) and you're stuck. Here's the order to do it in.

    8 min

  12. Buying

    Buying a car at auction without getting burned

    At auction the hammer is the contract: no test drive, usually no warranty, no returns. The winning is the easy part; the homework is what saves you.

    7 min

  13. Insurance

    Car insurance groups, explained

    Two cars the same price can be a world apart on insurance. The group number is the clue most buyers ignore until the quote lands.

    6 min

  14. Buying

    Car warranties, explained: what's actually covered

    Not all warranties are the same animal. One is a manufacturer standing behind the car; the other is an insurance policy with a claims department hoping you won't read the exclusions.

    6 min

  15. Selling

    Part-exchange or sell privately? The honest maths

    The convenient option and the profitable option are rarely the same one. The gap between a part-ex figure and a private sale is where the decision lives.

    6 min

  16. Buying

    Dealer or private seller? Know your rights before you buy

    Buy a dud from a dealer and the law has your back. Buy the same dud privately and you're largely on your own. The seller matters as much as the car.

    7 min

  17. Insurance

    Dashcam footage and insurance claims: what really counts

    A good clip can turn a your-word-against-theirs claim into an open and shut one. A badly set-up camera just records the sky and the time wrong.

    6 min

  18. Write-offs

    When is a car worth repairing? The write-off decision, explained

    A write-off isn't about whether a car can be fixed; almost anything can. It's about whether the sums add up for the insurer, which is a very different question.

    7 min

  19. Running costs

    Petrol, electric or hybrid: what actually costs less to run?

    The cheapest car to run isn't always the obvious one; it depends on your mileage, where you charge, and how long you keep it. Here's how to work out your own answer.

    7 min

  20. Tax

    How to tax a car you've just bought

    The seller's tax is refunded the day they sell, which means the car is untaxed from the second you own it. Here's how to fix that before you drive off.

    5 min

  21. Fraud

    Number plate cloning: how to spot it

    Cloning copies an innocent car's plate onto a dodgy one, so the paperwork looks perfect while the metal tells a different story. Here's how to tell.

    6 min

  22. Ownership

    SORN explained: taking a car off the road

    A Statutory Off Road Notification is how you legally stop taxing and insuring a car you're not using, and a gap you should ask about when buying one.

    5 min

  23. Buying

    How to check a car's service history

    No official database holds service records. Here's where they actually live, how to read them properly, and how to prove a stack of stamps is real.

    6 min

  24. Write-offs

    Category A and B write-offs, explained

    Cat A means crush the whole car; Cat B means crush the shell. Neither should ever be driven again. So why do they occasionally turn up for sale?

    6 min

  25. Buying

    Free vs paid car history checks: what do you actually need?

    Most bad cars die on the free checks. The paid ones exist for three flags nothing public will show you, and this is which tier to use when.

    5 min

  26. Buying

    What's a good mileage for a used car?

    Forget the 100,000-mile death sentence; it's decades out of date. Multiply age by 7,000, then worry about whether the miles are genuine.

    5 min

  27. Write-offs

    How to check if a car has been written off

    The free DVLA data won't tell you: write-off status lives on an insurance register most buyers have never heard of.

    5 min

  28. Buying

    When is the best time to buy a used car?

    Plate-change gluts and quarter-end targets are real; most "best month" advice isn't. When prices genuinely soften, and why the right car still beats the right month.

    5 min