Looked at several cars that I didn't even get to the PPI. Then I found one that looked like "the one". I drove it and it felt perfect. Took it for a PPI, and, it turns out it had coolant/oil mix

While I had it in for the PPI, the seller coincidently sold it on eBay. I told the seller about the results of the PPI. I don't know what happened with the buyer. The car I ended up buying was long distance from a Cadillac dealer. I was able to speak with the shop that had cared for it for the previous 7 years(I found the nam from CARFAX), including having done the 60k mile maintenance the previous month. I was happy with that conversation and bought the car after flying out to drive and see it in person. It exceeded my expectations. In two years, I have replaced the front brakes and rotors(knew about it), one leaky spark plug tube and some DIY oil changes. YMMV