I’m considering a 2010 Subaru Outback with less than 50,000 km on the clock. Would you buy it? Are there potential mechanical issues such as rubber or such drying out that you can't see? It hasn't been driven much in eight years. What could go wrong if it starts getting driven 100 km a week? How up to date is the engine?
The main thing is servicing. Some owners tend to neglect the maintenance if their car doesn’t get used very much; they think it doesn’t need regular servicing like it would if it was used more often. That’s not the case; it still needs regular periodic maintenance. Certainly check the service record. Nothing should go wrong if it starts being used more often, and 100 km per week is not very much. You could, if you felt the need, replace the drive belts, radiator hoses; flush the cooling system, and brakes. But as it is it should be a good, reliable car.