I have a '95 Escort that just turned 179,000 miles today. It did it while
pulling a trailer with a 540 lb. (245 kg) motorcycle behind it. Had its share
of parts replaced...CV joints, alternator made it to 175,000, water pump,
ignition coil, cylinder head, inner and outer tie rods, struts and springs,
radiator and hoses, several sets of brakes, plus and wires. Gets its oil
changed every 3000 miles (just the cheap 5W30 from Wal-Mart) and a new timing
belt every 50,000 miles. The oil still looks almost new when it gets changed.
If yours has had regular oil changes, it should have lots of miles left. I
would say that it would take a lot more parts than you mentioned to justify
replacing the whole car. But, that's just me.