The IsItAGoodCar blog.
Honest, data-led guides on buying used cars in the UK. Just the facts you need to buy with confidence.
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Used Car Test Drive Checklist UK: How to Spot Mechanical Faults Before You Buy
A test drive is your best chance to spot hidden mechanical faults. Follow our comprehensive UK checklist to inspect the engine, gearbox, suspension, and more.
Cat S Write-Off Check: Buying a Structurally Damaged Car in the UK
A Category S write-off has suffered structural damage but is deemed repairable. Learn how to spot poor repairs, the insurance risks, and what to check before buying.
How to Buy a Used Car at Auction in the UK: A Beginner's Guide
Buying a used car at auction can save you thousands, but it comes with hidden risks. Learn how to decode auction grades, spot mechanical faults, and bid with confidence.
Consumer Rights Act 2015: How to Reject a Faulty Used Car in the UK
Bought a broken car from a dealer? Discover your legal rights under the Consumer Rights Act 2015, including the 30-day right to reject and how to claim a refund.
Buying a Used Car Unseen Online: Distance Selling Rights & Delivery Checks UK
Discover your distance selling rights when buying a used car unseen in the UK. Learn the essential delivery checks to perform and how the 14-day return rule protects you.
The Ultimate Used Car Inspection & Test Drive Checklist UK
Don't buy a lemon. Follow our comprehensive, step-by-step used car inspection and test drive checklist to spot hidden faults and save thousands in repair bills.
Buying a SORN Car in the UK: Legal Rules and Test Drive Risks
Looking at a cheap SORN car on a driveway? Discover the strict DVLA rules on test drives, avoiding hidden mechanical failures, and how to get it home legally.
5 Expensive Mechanical Faults to Watch For When Buying a Used Car
A shiny exterior and a fresh MOT can hide mechanical time bombs. Learn how to spot the warning signs of failing timing belts, DMFs, and turbochargers before you buy.
Buying an Ex-Fleet or Ex-Rental Car in the UK: The Ultimate 2026 Guide
Ex-rental and ex-lease cars offer huge savings, but they come with hidden risks. Learn how to verify their history, spot mechanical abuse, and avoid buying a liability.
Petrol vs Diesel vs EV: Total Cost of Ownership in the UK (2026)
Choosing between petrol, diesel, or an electric vehicle is no longer a simple calculation of fuel economy. Break down the true Total Cost of Ownership (TCO) for UK drivers in 2026.
MOT Advisories Explained: Which Ones Are Dealbreakers in 2026?
Ignoring MOT advisories can leave you facing thousands of pounds in imminent repair bills. Learn which warnings are routine maintenance and which are major red flags.
Used Diesel Car Buying Guide UK: Avoiding DPF, EGR & Turbo Failures
A modern diesel can save you hundreds in fuel, but a clogged DPF, stuck EGR, or blown turbo can cost thousands. Learn the essential checks to avoid the unholy trinity of diesel failures.
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