2017 GMC DENALI VIN 3GTU2PEC9HG339886

The GMC Denali described here left the factory in 2017. The gearbox is automatic, with four-wheel drive. The fuel is petrol.

The car was recorded with 65,909 miles on the clock. A later figure lower than an earlier one points to a replaced instrument cluster or an odometer that has been wound back. Service invoices and inspection reports each carry a mileage figure, and lined up in order they show whether the clock tells the truth.

No damage type appears in the source data; that shows what was entered, not what the car has been through. Water marks under the carpets, rust in unusual places or a panel in a slightly different shade would point to damage nobody ever entered.

The car is recorded as running and driving. A key was present. A condition note describes the car at one moment; months of standing or later work on the car can change the picture in either direction.

The record shows a clean title. Nothing on the title points to a total loss or a flood.

A car’s history answers three questions: who kept it, how it was looked after and what went wrong along the way. A car’s paperwork is scattered: the registry knows about owners, the workshop about repairs and the insurance company about claims. From the outside, a car with a repaired accident and a car without one can look identical.

A cold start, the colour of the exhaust smoke and any oil leaks tell a mechanic a good deal about how an engine has been treated. On a petrol engine, a rough idle, misfires or a warning light on the dashboard need looking into. The automatic gearbox needs its fluid changed at the manufacturer’s intervals, and invoices should show that it was. A car with four-wheel drive has extra differentials and often a transfer case, which an inspection should cover alongside the engine and gearbox.

A VIN never contains the letters I, O or Q, which could be mistaken for digits; its 17 characters identify the maker, the model and the individual car. The record gives the VIN as 3GTU2PEC9HG339886. A VIN that differs between the documents and the car, or shows signs of tampering, is reason enough to walk away.

Where entries exist, a VIN check can show changes of owner, past mileage readings, reported damage and whether the car is listed as stolen. A repair paid for in cash at a small workshop leaves no trace in any database, so no report can list it. A professional inspection makes sense whatever the paperwork shows, because no report measures corrosion, worn bushes or a poor repair. A history check on VIN 3GTU2PEC9HG339886 is the place to start.