I purchsed the car new in 2004 with 42 miles on it. No problems to speak of, the dealer did replace brake pads and rotors under warranty at 11,902 miles. one of the most comfortable cars for driver and passager, back seats are cramped, but a small price to pay fo rthis car. Have gotten use to the navigation and really like it now. After owning a Jaguar, it's hard to consider driving anything else. Such a high build quality, high grade materials that you jsut don't see in other cars.
Very happy with the car. Can run with my Boxster S from 0-60 while giving you a plush ride. Drove both the 2004 and my 2003 and decided on the 03 because it has the classic XJ looks. The 04 is a nice car, but it looks more like a Ford than a Jaguar!
My second XJR, and worth checking out. The supercharger helps the V8 get up to 60mph in a little over 5sec., not bad for a 4000lb car. Styling has been around for a few years, but still a head-turner and unique from the 4-wheel box cars out there now. Only option available is Brembo brakes (recommended), everthing else is standard (incl. DVD navigation system and CD player). The cheapest limited production, luxury, high performance vehicle you can buy.