carDNA Guides

BUY USED
WITH CONFIDENCE

Buying a used car is one of the biggest purchases most people make — and one of the easiest to get wrong. These free guides walk you through everything you need to know to spot a bad buy before you hand over a penny.

Guide 01 · Essential

How to Check if a Car Has Been Written Off

Category S, N, A and B explained in plain English. Learn what each write-off category means, how it affects value and safety, and why private sellers don't have to tell you.

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Guide 02

Understanding Your Car's MOT History

How to read an MOT record like a mechanic — what advisories really mean, spotting mileage discrepancies, and the warning signs that should make you walk away.

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Guide 03

UK Road Tax (VED) Explained

How car tax is calculated, why the rules changed in 2017, what you'll pay for your vehicle and the simple checks that stop you overpaying.

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Guide 04

The Complete Used Car Buying Checklist

A step-by-step checklist covering paperwork, the test drive, bodywork, mechanicals and negotiation — everything to check before you buy.

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Guide 05

How to Avoid Used Car Scams

Clocking, cloning, outstanding finance and "too good to be true" listings. Learn the most common UK car scams and exactly how to protect yourself.

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CHECK ANY CAR FREE

Put what you've learned into practice. Enter any UK number plate for an instant check — MOT history, road tax, emissions and more, straight from official DVLA and DVSA records.

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