
Cadillac was fine in the Thirties, Forties, and Fifties, and then it went downhill, along with Lincoln. That's going to be tough to get back. It can only come from focused and consistent messaging on the excellence of the car, and it's got to be accompanied by dynamite styling.
For Cadillac and Lincoln, the priority should be to build the best-looking full-size sedan in the world. If everything you do is the best looking with the best trim, the best leather, and the biggest wheels, the performance just has to be adequate. The car doesn't have to win every high-performance comparison test. It just has to be so compelling that it forces people to consider the brand. That's where the new Lincoln Continental concept succeeds. It will have some people who have never considered a Lincoln saying, "Boy, this thing looks great." Then they'll drive it, and sure enough, it will likely drive great.
http://www.roadandtrack.com/car-culture/a25915/go-lutz-yourself-the-luxury-problem/