Our '98 has 375,000 kms. We have had it for 7 yrs and love driving it. We have to retire it finally because of rusted out frame and gas tank from so much salt on the roads of Canada.
We have done very little to it except to replace all the brake and gas lines, again due to rusting.
Still gets excellent gas mileage( we were getting as much as 44 mpg).
So if you have 175000 - 200000 kms on your car, don't give up hope, there's plenty left.