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The second model in Jaguar's ultra-high performance R-S range, the Jaguar XFR-S joins its XKR-S sibling in the exclusive 300km/h club and is a vivid expression of Jaguar's longstanding and legendary sports saloon lineage.
2014 Jaguar XFR-S
The Jaguar XFR-S incorporates engineering features from both the XKR-S and the all-new F-Type two-seater sports car to create the most driver-focused, agile and responsive iteration of Jaguar's award-winning XF saloon range. The Jaguar XFR-S has been developed by Jaguar Land Rover's specialist ETO division - its bespoke powertrain, chassis and body enhancements enabling it to push the performance boundaries.
2014 Jaguar XFR-S
Electrifying performance is provided by the 5.0-litre supercharged V8 petrol engine which now boasts 550PS and 680Nm - up 40PS and 55Nm respectively over its XFR installation. The increases have been achieved through revisions to the engine management system and optimisation of the flow of air both into and out of the engine.
2014 Jaguar XFR-S
Fitted with an eight-speed transmission incorporating Jaguar's 'Quickshift' technology (developed for the F-Type), the increase in engine output allows the Jaguar XFR-S to accelerate to 60mph in 4.4 seconds (0-100km/h in 4.6 seconds) and on to an electronically limited top speed of 186mph (300km/h).
2014 Jaguar XFR-S
Airflow has been carefully managed in order to both allow the engine to operate at peak efficiency and let the car cleave the air cleanly and safely. The resulting body changes have created a distinctively assertive appearance, beginning with the deeper front bumper with its larger lower air intakes, vertical vanes and carbon fibre front splitter.
2014 Jaguar XFR-S
Deeper sills and unique 'aero-blades' ensure a clean passage of air along the side of the car and on to the deeper rear bumper sides while a carbon fibre rear diffuser between the signature quad tailpipes extends underneath the rear of the Jaguar XFR-S to reduce lift. It is aided in this by a bootlid mounted spoiler, two designs being available. Overall lift is reduced by 68%.
The unique 20-inch lightweight forged alloy 'Varuna' wheels are wider front and rear and are shod with specially developed Pirelli rubber, giving the Jaguar XFR-S a more muscular stance and increasing its grip and stability. Allied to this are extensive suspension revisions which serve to increase lateral suspension stiffness by 30% for greater steering precision and responsiveness.
Revisions to both spring rates and the adaptive damper tune increase the feeling of connectivity with the road surface, providing confidence-inspiring handling and a supple, controlled ride. Recalibrated active electronic differential and Dynamic Stability Control settings allow the enthusiastic driver to make the most of the huge potential of the Jaguar XFR-S.
The car's intent is underlined by the technical palette of materials used on the interior. This includes carbon leather on the seat bolsters and arm rests and a Dark Aluminium fascia, both of which are exclusive to the R-S range. Providing a further unique touch are a choice of contrasting colour stitching and micro-piping which can be matched to the exterior paint scheme.
"In developing the XFR-S the engineering challenge was to extend the considerable dynamic abilities common to the entire XF range. The bespoke chassis, powertrain and body enhancements meet that challenge and give the XFR-S its focused performance edge." Andrew Whyman, Chief Programme Engineer, Jaguar XF
Design
"The Design Team was very conscious that it would be the aerodynamic solutions required to deliver the performance of the Jaguar XFR-S that would dictate its aesthetics. This is a concentrated and focused car and the design revisions and the materials used all reflect that." Wayne Burgess, Studio Director, Jaguar Design
Reflecting the changes under the skin, the appearance of the Jaguar XFR-S has been subtly modified in order to allow the car to achieve its full potential.
The new, deeper front bumper incorporates larger lower central and side air intakes - the former framed in carbon fibre - in order to provide adequate airflow into the engine bay. Carbon fibre is also used to form the front splitter at the lower edge of the bumper, the first of a number of aerodynamic changes designed to smooth the passage of the car through the air at very high speeds.
The extended side sills and aeroblade mouldings behind the front wheels serve to create a sharp break-off point between the lower bodywork and the road surface in order to keep the airflow attached to the car's sides for as long as possible.
The same thinking dictated the deeper side mouldings behind the rear wheels. This extended rear bumper also incorporates a central, carbon fibre diffuser, deeper than the item found on the XFR and which travels further under the rear of the car to reduce lift.
Rear lift is also reduced through the fitment of a bootlid-mounted spoiler to manage the airflow off the top rear surface of the car. Two options are available, both of which have been designed with the aid of computational fluid dynamics to provide perfectly balanced aerodynamics. The larger of the two rear wings is constructed with a carbon fibre aerofoil centre section.
The combined result of the bodywork revisions is a reduction in overall lift of 68%.
The wider, six-spoke, lightweight Varuna forged alloy wheels provide the Jaguar XFR-S with a purposeful, broad shouldered stance and come as standard with a dual finish. A ceramic polish is applied to the outer surfaces, its eye-catching appearance contrasting with inner gloss black areas. As an option the wheels can be supplied in either full gloss black or technical grey finishes.
The assertive appearance of the Jaguar XFR-S is further enhanced through the use of gloss black trim in place of chrome around the grille, within the side vent, around the front and rear screens, windows and across the bootlid. The mesh in the front grilles is also a purposeful gloss black.
Jaguar XFR-S customers can choose from an exterior palette comprising five colours: French Racing Blue, Ultimate Black, Stratus Grey, Polaris White and Italian Racing Red.
This colour palette is complemented inside the XFR-S with Warm Charcoal leather trim on the seats and doors enhanced through the use of carbon effect leather. Exclusive to R-S cars, this is used on the seat bolsters and arm rests and reflects the use of exotic carbon fibre on the aerodynamic elements of the car. The seats themselves are embossed with the R-S logo and can be finished with a choice of contrast colour micro-piping and stitching in either red, blue or ivory. The same subtle enhancement runs across the top of the dashboard, the fascia of which is finished in a Dark Aluminium unique to the R-S, complete with badging.
The XFR-S is fitted as standard with a 380W, 12-speaker surround-sound system from British audio experts Meridian. Recognised by audiophiles as a leader in audio reproduction and fidelity, the system uses digital signal processing to create a sound field that is second to none. An optional 825W and 18-speaker system features Meridian's proprietary Trifield System which places every occupant at the centre of their own perfectly focused surround-sound arena.
Articles Source : netcarshow
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