Jaguar's rolling showcase and largest, most luxurious sedan, the XJ, touts the company's latest achievements in engineering, technology and luxury. Wrapped in a lightweight all-aluminum body, the 2009 Jaguar XJ is surprisingly agile for its size, yet remarkably solid. Offered in a variety of trims, including two stretched wheelbase versions and the legendary performance cat, the XJR, the XJ is without question the finest Jaguar product to date. Faced with radically new designs emerging from Audi, BMW and Lexus, Jaguar's strategy to stick with its traditional styling may prove problematic. With sales still not as robust as Jaguar would like, it may be possible to wrangle a good deal on a new XJ.