2011 GMC SIERRA K1500 SLE VIN 3GTP2VE32BG394463

This entry is for a 2011 GMC Sierra K1500 SLE, finished in blue. Under the bonnet is a 5.3-litre flex-fuel engine. Power reaches the wheels through an automatic gearbox. Details for this car come from a single data source and may differ from its documents.

At the time of recording, the car had covered 123,734 miles. Because the clock counts miles, any figure noted in kilometres has to be converted before the two can be compared. A single figure proves little: what makes a mileage believable is a series of readings that rise steadily over the years. Older figures usually turn up on service invoices, inspection reports and past title paperwork.

In the source data, the main issue is rear-end damage. Whether the damage has been repaired since, and how well, is not something a damage entry can show. Some damage shows its consequences only later: corroded connectors and electrical faults can surface months afterwards.

A car that does not run has to be moved on a trailer, and its real condition is known only after a thorough assessment. The engine started, but that says nothing yet about the gearbox or the drive to the wheels. A key was there when the car was checked.

Title status in the record: salvage. Titles of this type are issued to cars declared a total loss. A branded title follows the car through every change of owner, so it remains part of its history.

Every car builds up a history from the day it is first registered: owners come and go, inspections are passed or failed, and repairs are paid for. The paperwork is kept by different bodies – registries, workshops, insurance companies and lenders – so the history of one car is spread across many places. Much of a car’s past cannot be seen: a good body repair leaves no obvious mark, and neither do years of hard driving.

For the engine, the service history matters most: oil changes, filters and the timing belt or chain are the entries to look for. On a petrol engine, spark plugs, ignition coils and the cooling system are the routine items a service history should cover. With no test drive possible, the automatic gearbox has to be assessed on a lift and with diagnostic equipment. Drive to all four wheels means more to maintain: differentials and couplings have oil of their own, which some manufacturers want changed at set intervals.

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 3GTP2VE32BG394463. 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 shows what has been logged: earlier registrations, odometer figures, damage entries, branded titles and theft checks, wherever such data exists. The past is on file; the car’s condition today is a job for a mechanic, who can check the structure, underbody, electrics and any repairs on a lift. The next step is to look up the history behind VIN 3GTP2VE32BG394463.