The Jaguar XJ Series is now in its seventh generation, and this full size flagship sedan continues to offer a blend of advanced technology and equipment with classic Jaguar styling. News for 2006 includes greater engine output for the V-8 and an improved braking system. Satellite radio and Bluetooth are now optional.

The XJ8 sedan is the entry level models for this luxury car, and it is also available with a longer wheelbase. The XJ8 receives all the expected luxury features: leather seats, walnut trim, all power features, adjustable pedals, and four-zone climate control. All XJs also receive Jaguar's "CATS" (Computer Active Technology Suspension), traction control, and the convenient rear-park assist. The ultra-luxury Vanden Plas adds features like fold-down picnic tables for rear seat passengers, lambswool carpeting, and a navigation system. The Super V-8 is differentiated by a more powerful engine, and receives all the features of the lower trims.

For 2006, Jaguar also offer the Super V-8 Portfolio, which costs $25,000 more than the Super V-8. This model features 20 inch wheels, a 400-watt Alpine sound system, a rear center console splitting two power rear seats, and upgraded wood and leather.

The XJ8, XJ8 L, and Vanden Plas are powered by a 4.2 liter V-8, which makes 300 horsepower and 310 pound-feet of torque. Super V-8 models add a supercharger, bringing horsepower to 400 and torque to 413 pound-feet.