^^^ The majority of the wear comes from warming up, so if the car does nothing but short journeys the engine WILL wear out quicker than a high mileage car that has done the same amount of cold starts but lots of warm mileage, a 20K engine can be more worn than a 100K engine, too many people get hung up on buying really low mileage cars IMO, sure gearboxes and wheel bearing wear with mileage, but this is why a higher mileage car with FSH can be a better buy than an ultra low mileage car.