Nothing, although I have only had the car for 2 weeks. But I believe this one is solid.
Ford has been the brunt of jokes on their quality and reliability (ex. "F.O.R.D. stands for Fixed or Repaired Daily) but I strongly disagree. I previously owned a 2002 Explorer XLT (although since it had a sunroof and 3rd row seat, it didn't have XLT badge on it) which was superb.
After 5 years of ownership I decided I wanted a new car. I recently heard that Ford brought back the Taurus (and similar Mercury Sable). I didn't want a higher priced Sable, which is a dressed-up Taurus. But, I also didn't want a Taurus sedan, so I bought the Taurus X.
My Taurus X has almost all the options a limited model does (leather, sunroof, 3rd row seat, 2nd row captains chair, heated/cooled front seats) for $7,000 less! I had owned a 1988 Taurus wagon, and a 1990 Taurus sedan (both new). They treated me so well, and I loved the looks of the Taurus X.
Performance is excellent, the car has great pick-up, and the brakes are phenomenal. The only thing I wish my Taurus-X had was a backup sensor system, but the SEL doesn't offer that option.
In conclusion, the Taurus X has really been designed to show the public that Ford is not a bad car company, and they actually CAN make good, reliable and stylish cars that hold up against time.
Congrats on the Taurus X. It is an extremely stylish and very well built car. If my wife ever tires of her GMC Envoy, it will be one of our choices as a possible replacement. We have owned Ford, GM and Chrysler products, as well as a few imports over the years. Our Fords have always been incredibly reliable. One went 325,000 miles with nothing beyond routine maintenance, a muffler and a starter. As we are seriously considering a Taurus X in the next year to 18 months, I'd love to see updates on how you like the car and any problems you might encounter (which, if our experience is typical, will be none). Thank you for your review.