The latest R Performance range of options (available on both XK8 and XKR)includes unique Recaro seats, high performance Brembo brakes (now standard on the XKR)and a package of interior details with sporty aluminium or leather finishes. A handling package that uprates suspension and steering is available on coupe models only.
The supercharged XKR, with its greater performance, now has Brembo brakes as standard. The system features 355x32mm ventilated front discs and 330x28mm ventilated rear discs, with four-piston aluminium calipers carrying the Jaguar R Performance logo. Steel-braided brake lines complete the highly impressive specification and give the XKR stopping power and feel more than equal to its exceptional performance. The Brembo braking set-up is available as a cost option on XK8, linked to one of the three 20-inch R Performance styles available.
Source: Jaguar Press Release