Often cars in the luxury market will be quite similar but the intention of the 2011 Jaguar XJ is to entice customers with something that is a bit different. And the new XJ looks downright sinister. This four door sedan sports 20in. rims and has a super powerful v8 engine.2011 Jaguar XJL PhotosThe supercharged version of Jaguar's 5.0 liter engine combines 15 mpg city and 21 mpg highway for a