Jaguar is having trouble selling the stunning XJ sedan, and the reason underlines how pathetically insecure and materialistic Americans can be. It looks too much like the old XJ, and other people can’t tell the difference. So the XJ, with its high-tech aluminum architecture and silky smooth V8 engines combined with classic design and an interior coated in lovely wood and leather sits, unwanted, while just about anything with a blue-and-white propeller badge flies off dealer lots.