As long as you keep the maintenance up, it should last a few more years. The driving you describe is the easiest miles on a vehicle. I sold a 1988 4 cylinder Ranger last year, and the owner loves it. That 1988 should last until they outlaw gas. Parts wear out on a vehicle, but if you change those parts (brakes, shocks, clutches, timing belts, etc.), the vehicle will still keep going. There are cars over 50 years old that are still going strong.