Very low-mileage vehicles can be problems waiting to happen simply because they sat. I've known of clogged hydraulic lifters in seldom-used American vans and light trucks with low miles, for example. This can happen for a specialty fleet vehicle, such as used by first responders and the likes of government agencies. If the fluids were never changed in 30 years, well...
When I worked in state corrections, I drove an inmate to a hospital in a 20–year-old Dodge van that had been converted to an ambulance (but no emergency lighting). It had fewer than 2,000 miles on the odometer. The engine had lots of lifter noise.