There will come a time when the Corolla that you’ve owned for years will lose logistical support from the manufacturer. It’s at these situations old car owners turn to the aftermarket for quality salvage auto parts. Dealers like AA Auto Parts are known to have inventory of different car parts for models as early as 1950.
So far, old Corollas are still getting OEM support from Toyota itself; less likely for very old ones. An owner’s worries about a car being “orphaned” is very common. It’s for that reason that the salvage car parts industry exists. Out-of-production means old car owners can get quality salvage car parts for a lower price.