The fact that NY cabs don't change oil is old news already. The mileage varies from 500,000 to 2,000,000. One cabbie joked, if it's american made the body and parts fall off around the engine.
What a lot of people don’t realize is that just setting around and not running often takes a heavier toll on a car than driving.
Seals dry out; fuel goes bad; batteries age faster; tires dryrot and develop flat spots; the weather dries out the volatiles in the vinyls; acids form in the exhaust, especially if most trips are short; reuse of the vehicle for a long trip can then show up the effects rather unexpectedly, causing expensive emergency repairs.