Many factors need to be in the puzzle.
maintenance, good in this case
driving style and type of driving (hard driving adds wear and raises the accident possibilities)
accidents are a deal breaker
Where is it parked... not in a garage.. possible theft, also the sun and heat will take it's toll on the vehicle.
All vehicles will last as long a the owner wants, depends on what the owner wants.
Most 93 geo's are not on the road at nearly 20 years.
I personally drive a 43 year old car daily, it has been absolutely reliable in 120,000 miles of driving.