2014 INFINITI QX60 VIN 5N1AL0MM1EC505703

The Infiniti QX60 described here left the factory in 2014. Under the bonnet is a 3.5-litre petrol engine producing 265 hp. There is an automatic gearbox, with four-wheel drive.

The clock stood at 171,825 miles when the data was entered. The instruments count in miles; the same distance in kilometres is about 1.6 times the figure. A single figure proves little: what makes a mileage believable is a series of readings that rise steadily over the years. Service invoices and inspection reports each carry a mileage figure, and lined up in order they show whether the clock tells the truth.

The record lists damage to the left side as the main problem on this car. Whether the damage has been repaired since, and how well, is not something a damage entry can show. Given the kind of damage entered, a mechanic should look first at the pillars, sills and doors on the left side.

At the time of recording, the car ran and drove. A key was there when the car was checked. 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.

Title status in the record: salvage. Titles of this type are issued to cars declared a total loss. If any work has been done on the car since, photos and invoices should show what was replaced.

A car’s history is the sum of what has happened to it since it was new, and most of it has left a trace on paper somewhere. Pieces of a car’s history sit with registries, dealers, workshops and insurance companies, and none of them sees the whole picture. Much of a car’s past cannot be seen: a good body repair leaves no obvious mark, and neither do years of hard driving.

Regular oil changes and timely work on the timing belt or chain decide how well an engine copes with age. Many modern petrol engines are turbocharged and direct-injected; where they are, the turbocharger and injectors belong on a specialist’s checklist. Automatic transmissions, CVTs included, are expensive to repair, so the test drive should include pulling away from a standstill and a stretch at motorway speed. With four-wheel drive, mismatched tyres can strain the centre differential or coupling, so all four should be the same make and similarly worn.

The tenth character of the VIN stands for the model year, and the eleventh for the plant that built the car. The VIN of this Infiniti QX60 is 5N1AL0MM1EC505703.

Depending on what is on file, a VIN report may include past registrations, mileage readings, damage entries, branded titles and theft checks. A history report says nothing about the car’s present condition: the frame, corrosion, electrics and the quality of any repair are judged on a lift by a mechanic. With this 2014 Infiniti QX60, the first step is a look at the history behind VIN 5N1AL0MM1EC505703.