Used-car shoppers often filter by mileage first. Low numbers feel safe. But mileage tells only part of the story, and age brings its own kinds of wear.
The best indicator of a good used car is how it has been looked after.
What high mileage wears out
Engine, gearbox, clutch, suspension, and brakes all wear with use. But motorway miles are gentle compared with short trips and stop-start traffic. A high-mileage car with a full service history from steady long-distance driving can be in better shape than its odometer suggests.
What age wears out
Rubber seals, hoses, belts, and tyres degrade with time even if the car is barely driven. Low-use cars can suffer from flat-spotted tyres, seized brakes, and batteries that have been repeatedly drained. Timing belts have an age limit as well as a mileage limit.
Average mileage as a benchmark
Many drivers cover somewhere around 7,000 to 12,000 miles a year, depending on the country. A car well below that may have been a second car or a city runabout; well above suggests a commuter or company car. Neither is automatically bad.
What matters more than either
- A documented service history at the right intervals
- Evidence that major items such as the timing belt have been done
- Consistent mileage records over the years
- A clean inspection and a smooth test drive
This is general car-buying information, not financial or legal advice. Prices, incentives, financing terms, and specifications change and vary by region — confirm all details in writing before you sign anything.