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2015 Jaguar XFR-S Sportbrake

4h ago
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Description

2015 Jaguar XFR-S Sportbrake The third model in Jaguar's ultra-high performance R-S range, the Jaguar XFR-S Sportbrake joins its XFR-S saloon sibling in the exclusive 300km/h club and is a vivid expression of Jaguar's longstanding and legendary sports saloon lineage. The XFR-S Sportbrake 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 model range. The Jaguar XFR-S Sportbrake's R-S powertrain, chassis and body enhancements enable the car to push the performance boundaries. 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. 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 Sportbrake to accelerate to 60mph in 4.6 seconds (0-100km/h in 4.8 seconds) and on to an electronically limited top speed of 186mph (300km/h). In order to manage the extra rear mass of the XFR-S Sportbrake while retaining the sharp turn-in and response of the XFR-S Saloon, the Sportbrake's rear suspension has been modified with revisions to both rear spring rates and the adaptive damper tune. These revisions work together to increase the feeling of connectivity with the road surface, allowing for confidence-inspiring handling and a supple, controlled ride. Recalibrated active electronic differential and Dynamic Stability Control settings have been tuned to work with the Jaguar XFR-S Sportbrake's modified rear suspension to allow the enthusiastic driver to make the most of the car's huge potential. The XFR-S Sportbrake features Jaguar's acclaimed 5.0-litre supercharged V8 petrol engine in its most potent form matched to an eight-speed transmission with Quickshift functionality. This all-new combination provides a visceral blend of vivid acceleration, driver involvement and control plus entry to the exclusive 300km/h (186mph) club of ultra-high performance cars. The all-aluminium quad-cam engine delivers not only extreme performance but also tremendous efficiency thanks to the technologies incorporated into it, including spray-guided direct injection (SGDI) and dual independent variable cam timing (DIVCT). The high-pressure die-cast lightweight aluminium block is stiffened with cast iron liners and cross-bolted main bearing caps, providing refinement to match its power. The four-valve cylinder heads are constructed from recycled aluminium, between them sitting the Roots-type twin vortex supercharger fed by two intercoolers. These feature their own water-cooling circuit to reduce the temperature of the pressurised air to optimise power and efficiency. In order to help liberate the additional 40PS and 55Nm of torque over the standard XFR, larger front air intakes in the lower bumper of the XFR-S allow greater volumes of air to be fed into the engine. The intake system also features a symposer that channels more of the induction noise into the cabin, adding to the aural excitement of the Jaguar XFR-S Sportbrake. The result is a 0-60mph time of 4.6 seconds (0-100km/h in 4.8 seconds) and an electronically-limited top speed of 186mph (300km/h). The exhaust system has been optimised in order to channel the waste gases away from the engine with the greatest efficiency. The central silencer has been replaced with an X-piece and near straight-through rear pipes combining to provide an enhanced exhaust note with the added benefit of a motorsport-style crackle on the overrun. Maximising the benefit of the engine recalibration is the eight-speed automatic transmission with Quickshift technology. Developed for the F-Type sports...