The XJR ($79,930) is the high-performance model, built on the short wheelbase and powered by the 400-hp, supercharged version of the V8. The XJR also gets a firmer suspension with steel springs, rather than air springs, larger Brembo brakes, 19-inch Sabre alloys wheels with Z-rated performance tires, R Performance sport seats and special trim inside and out. It comes with the Alpine audio and Jaguar's touch-screen navigation system.
The Super V8 ($91,335) is the luxo-hotrod of the line, or the long-wheelbase Vanden Plas with the 400-hp V8 and Brembo brakes. It also features four-zone climate control, adjustable rear-seats and a DVD-based rear seat entertainment system with two 6.5-inch display screens.
Options are few, given the level of standard equipment. A Warm Climate Package ($1,350) includes four-zone climate control and rear sunblinds. The Multimedia Package ($2,950), touch-screen navigation ($2,300) and Alpine audio ($1,600) are offered for models that do not include them. Single options include Front Park Control ($250), Sirius Satellite Radio hardware ($450) and a range of special wheels ($1,200-$4.500)
The XJ's standard safety features match the class baseline: dual front airbags, front occupant side-impact airbags, curtain-style head protection airbags front and rear, advanced four-channel anti-lock brakes (ABS) and electronic stability control. Some other full-size luxury sedans offer driver's knee airbags and rear side-impact airbags.
The XJ's tire-pressure monitor, however, is one of the most sophisticated available, measuring absolute pressure in each tire. Most systems rely on the ABS system to measure tire pressure, which means they measure each tire relative to the other. Theoretically, if all four tire loose pressure at the same rate, the system might not report a pressure loss. Next Page