2001 GMC DENALI XL K1500 VIN 1GKFK66U31J186134

The GMC Denali XL K1500 described here left the factory in 2001. Power reaches the wheels through an automatic gearbox. Under the bonnet is a 6.0-litre petrol engine. Details for this car come from a single data source and may differ from its documents.

The record gives the mileage as 182,024 miles. A clock converted from miles to kilometres should be documented, since the swap can hide the true mileage. Services and inspections note the distance covered, so a car with an ordinary past builds up a trail of figures that climb year after year. Figures carry most weight when they come from independent sources: workshops, inspection stations and past title paperwork.

When the car was recorded, it showed front-end damage. Whether the damage has been repaired since, and how well, is not something a damage entry can show. Damage rarely stays where it is first seen: an impact can reach the mountings and airbags behind a panel, and water or fire the wiring and electronics.

At the time of recording, the car ran and drove. A key was noted with the car. Condition notes are a snapshot: the car may have been worked on, stripped of parts or left standing since.

A salvage title is on file for this car. At some point in its life, the car was declared a total loss. The structure and the quality of any work done deserve a thorough inspection on a car with a branded title, however sound the car looks.

A car’s history is everything logged against it since it left the factory: registrations and owners, inspections, repairs and insurance claims. A car’s paperwork is scattered: the registry knows about owners, the workshop about repairs and the insurance company about claims. A clean, polished car can still hide a serious accident, a flood or years of hard use.

Many modern petrol engines are turbocharged and direct-injected; where they are, the turbocharger and injectors belong on a specialist’s checklist. 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.

The tenth character of the VIN stands for the model year, and the eleventh for the plant that built the car. For this car, the VIN is 1GKFK66U31J186134. The number in the car’s documents should match the one stamped into the body and the one on the plate at the base of the windscreen.

A VIN report gathers what different sources know about a car, such as the number of owners, mileage readings, damage and any branded title. No report is complete: a repair done privately and never claimed on insurance leaves nothing to find. A professional inspection makes sense whatever the paperwork shows, because no report measures corrosion, worn bushes or a poor repair. For this 2001 GMC Denali XL K1500, the sensible next step is a history check on VIN 1GKFK66U31J186134.