Jaguar signifies its high-performance vehicles with an R at the end of the model designation. The XJR comes out after a five-year hiatus for the performance version of the XJ, following the launch of the updated XJ model in 2011.

Updated:Caption:Photo:Josh Miller/CNET

The XJ is Jaguar's flagship sedan, and the XJR variant sits at the absolute top of the model lineup.

Updated:Caption:Photo:Josh Miller/CNET

For the R version, Jaguar paints the wire grille black and includes an aerodynamic splitter in front.

Updated:Caption:Photo:Josh Miller/CNET

Vents in the hood denote the supercharged engine.

Updated:Caption:Photo:Josh Miller/CNET

The R version is called out on the chrome fender ornaments.

Updated:Caption:Photo:Josh Miller/CNET

The 5-liter V-8 engine, with its supercharger, puts out 550 horsepower. The carbon fiber engine cover is an option.

Updated:Caption:Photo:Josh Miller/CNET

20-inch wheels come standard on the XJR. The design is made specifically for this model.

Updated:Caption:Photo:Josh Miller/CNET

XJ models feature this panel in the C-pillars that Jaguar describes as wraparound sunglasses.

Updated:Caption:Photo:Josh Miller/CNET

The XJR features quad tailpipes, while the flowing taillights are standard for the XJ model.

Updated:Caption:Photo:Josh Miller/CNET

The trunk lid sits up high on its struts when open, allowing better trunk access.

Updated:Caption:Photo:Josh Miller/CNET

The interior of the XJR features a variety of carbon fiber trim and metal switchgear.

Updated:Caption:Photo:Josh Miller/CNET

The seats feature bolstering designed to keep passengers in place during fast cornering.

Updated:Caption:Photo:Josh Miller/CNET

The rear seats offer a lot of legroom, but the driver's seat is the place to be.

Updated:Caption:Photo:Josh Miller/CNET

Jaguar uses virtual gauges rendered on an LCD for the instrument cluster. The graphics look a little flat.

Updated:Caption:Photo:Josh Miller/CNET

One nice effect with the LCD is that it turns red when you put the car in its Dynamic mode.

Updated:Caption:Photo:Josh Miller/CNET

The tachometer gets replaced with voice command instructions temporarily when you hit the voice command button.

Updated:Caption:Photo:Josh Miller/CNET

The touch-screen infotainment center comes standard in the XJR.

Updated:Caption:Photo:Josh Miller/CNET

Hard-drive-based maps are not particularly elegant, but they show useful information, such as traffic.

Updated:Caption:Photo:Josh Miller/CNET

The Bluetooth phone system includes integration with a paired phone's contact list.

Updated:Caption:Photo:Josh Miller/CNET

The XJR comes with the typical array of digital music sources, but no online music capability.

Updated:Caption:Photo:Josh Miller/CNET

The included Meridian audio system delivers excellent clarity.

Updated:Caption:Photo:Josh Miller/CNET
Up Next

Six generations of the Ford Mustang (pictures)