Camshaft position drive and sensor at 57,000.
Upper O2 sensors at 64,000.
7 years old when we bought it with 39K on odometer. Not what we wanted originally (it's a Wagon), but the price was good and we were in desperate need.
We have driven this car 40K miles over the past 2 1/2 years. It's not an exciting or fun car, but we are still very pleased with it. We don't like trucks or SUV's, so the Wagon is great for our frequent trips to the home improvement store.
The Ford 3.0 V-6 is a super engine and gets decent gas mileage (had same experience with a Taurus we owned previously).
Comfortable interior and upholstery has held up well for age and mileage. A/C is ice cold.
The only repairs are noted above - the rest is regular maintenance. We service it regularly and keep the fluids fresh which I believe is the key. I do worry about the fwd transaxle as they are not known for longevity. This car's a keeper so would replace a trans if needed.
If you're looking for performance and excitement, this car is not for you. If you are looking for a comfortable "every-man's" car, the Sable/Taurus is a great choice.
UPDATE by owner of this car: 93,000 miles and still going strong. Looks good, runs good. (I will probably jinx myself for saying that!) Radiator did crack at 87,000 - labor for R&R is expensive. Only normal maintenance otherwise. Everything else works great.
Just keep up on all the maintenance, and be sure to change the transmission fluid regularly (do not use the tranny flush method), don't beat on it and the car should be good for quite awhile.