I owned a 99 S70 and currently own an 01 wagon. I am/was pleased with both. I defer to Klaus for his recommendation of the 98. One thing to consider for the 01 is that at 106,000 there was a required timing belt change. I would suspect that it was not done. You need to verify it being done. If it wasn't or you can't verify it you'll need to make sure it gets taken care of immediately. Be sure to add that into the 01's cost.