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What Is a Vehicle Build Sheet?

Two cars, same advert, thousands apart. The build sheet shows why.

Two cars can look identical in an advert and still be worth thousands of pounds apart. The difference is often in the spec: the engine, the trim level and the options fitted at the factory. A vehicle build sheet tells you exactly how a car left the factory, so you know what you're really buying and what it's really worth.

Published 5 Oct 2026

A factory build sheet listing a car's VIN, engine, trim, paint and options beside the car

Quick answer

A build sheet is the factory record of how a car was originally specified – its trim, engine, paint, options and production date, tied to the VIN. Checking it by reg shows whether the advert matches the car, and because trim and options change the value, it makes any valuation far more accurate.
01

What a build sheet is

A build sheet is the factory record of a car's original specification. It's linked to the car's VIN (vehicle identification number), the unique 17-character code every modern car has. A build sheet typically shows:

  • Make, model, trim level and body style
  • Engine, power, fuel type and gearbox
  • Exterior paint colour and paint code
  • Interior trim and upholstery
  • Factory-fitted options and packs (a panoramic roof, heated seats, upgraded audio, driver assistance packs or a tow bar)
  • Production date
02

What's in your AnalyzeMyCar build sheet

Our build sheet is organised into two parts:

  • Equipment Packages - the factory option packs fitted to the car, the features included in each, and an estimated price for every pack - so you can see exactly what was specced and what it's worth.

  • Performance & Fuel Economy - the car's performance figures and official fuel-consumption data (NEDC and WLTP), straight from the factory specification.

03

Why it matters when buying a used car

  • Check the advert is honest - sellers sometimes describe a car as a higher trim or claim options it doesn't have, often by mistake. A build sheet shows what was actually fitted.

  • Pay the right price - trim level and options affect value. A sports pack, a bigger engine or premium audio can change the price noticeably - and a valuation is only accurate if it's based on the right spec.

  • Spot changes since it left the factory - if the car is a different colour from its paint code, or has wheels or parts that don't match the original spec, ask why. It could be a simple upgrade, or a sign of accident repair.

  • Find the right parts - garages and parts suppliers often need the exact spec to order the correct brake pads, filters or trim pieces.

04

How to read it: three quick checks

  • Does the trim level match the advert?
  • Are the options the seller mentions on the list?
  • Does the paint colour match the car in front of you?

If any answer is no, ask

A mismatch between the build sheet and the car in front of you isn't always a problem - but it's always worth an explanation before you go further.
05

Get the build sheet with AnalyzeMyCar

Our Build Sheet + Valuation report shows the car's factory specification and a market valuation for that exact spec - the right trim and options, adjusted for the car's mileage and condition. You can check the advert against the facts and know whether the asking price is fair before you view. See how the numbers work in How Vehicle Valuation Works, and for the viewing itself, use our used car buying checklist.

Run a car history check by reg, or see a sample report first.

Your first full report is free. See pricing, or browse real data on any model in CarParc.

Common questions

It's the factory record of a car's original specification, linked to its VIN: make, model, trim, engine, paint colour and code, interior, factory-fitted options and the production date.
A build sheet shows the exact factory specification. Our Build Sheet + Valuation report shows it with a market valuation for that exact spec.
Yes. Trim level and factory options change the price, so a valuation is only accurate when it's based on the car's exact spec.
Trim level and factory options move the price - a higher trim, a bigger engine or option packs can be worth a lot. The build sheet shows the exact spec, so you can compare like for like.
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