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Understanding factory build data — decoding option codes, checking used cars, and getting the most from your report.

Guides 2 July 2026 · 7 min read How to read your factory option codes What those cryptic codes on your build sheet actually mean — and how to decode your car's original specification, line by line. Read article →

Explainers 24 June 2026 VIN vs UK reg: which should you use? Both identify your vehicle — but one gives us more to work with. When each lookup makes sense. Read article → Buying advice 17 June 2026 Buying used? Check the factory spec first Missing options and swapped parts are red flags. How a build sheet helps you verify what you're buying. Read article → Guides 10 June 2026 What's in a build sheet? A full walkthrough Page by page through a real report — identity data, option codes, packages and control codes explained. Read article → Explainers 3 June 2026 The service history add-on, explained What the digital service record PDF includes, which manufacturers support it, and when it's worth £5. Read article → Buying advice 27 May 2026 Why dealers check the build sheet before pricing a trade-in Original options move resale value more than most sellers realise. What the trade looks for. Read article → Explainers 20 May 2026 What is a build sheet — and how do you get yours? The factory document behind every car, where the data comes from, and how to order a copy for your VIN. Read article → Explainers 13 May 2026 Free VIN decoder vs factory build sheet: what's the difference? Free decoders read the 17 characters; a build sheet reads the factory record. What each can tell you. Read article → Guides 6 May 2026 How to find your VIN: every location, by manufacturer Windscreen, door pillar, V5C logbook or engine bay — where to look on every major make. Read article → Guides 29 April 2026 BMW option codes explained: decoding your spec list S-codes, packages and internal codes — how BMW records equipment, with worked examples. Read article → Guides 22 April 2026 The Mercedes-Benz datacard: what it is and how to read it Every Mercedes has a datacard listing its factory build. What's on it and what the sections mean. Read article → Guides 15 April 2026 Audi & VW PR codes: a beginner's guide The Volkswagen Group's option-code system, where to find the sticker, and how to decode it. Read article → Buying advice 8 April 2026 How to spot a car modified from its factory spec Wheels, exhausts, remaps and retrofits — comparing the car in front of you against its build record. Read article → Buying advice 1 April 2026 Do factory options add resale value? Which options hold their money at resale — and which were expensive when new but worth little now. Read article → Buying advice 25 March 2026 How to verify "full service history" before you buy Stamped books are easy to fake. How digital service records prove what work was really done. Read article → Guides 18 March 2026 Land Rover & Jaguar build records: what's available for your VIN Coverage for JLR vehicles, what the factory record includes, and quirks to know before ordering. Read article →