That analysis is incomplete because any car that gets used at all ages by time as well as by mileage. The car is going to depreciate and degrade on a similar timeline regardless of how much you use it. Keeping miles off just changes the shape of the depreciation function.
At the end of a car's expected life, absolutely. But compare a two otherwise-identical 2016 or 2017 models, one with 30k miles and one with 120k miles.
