Land Rover Range Rover Sport
The exceptional 3.0-litre V6 diesel engines in the iconic Land Rover Range Rover Sport now offer even greater efficiencies, with reduced CO2, improved fuel economy and an increase in power for 2012. The output of the more powerful 245PS (241HP) engine has been increased to 256PS (252HP) with CO2 emissions reduced from 243g/km to 230g/km; whilst CO2 emissions for the entry level 211PS (208HP) engine have been substantially reduced from 243g/km to 224g/km, thanks to a low-flow fuel injection system.
These improvements are partly due to the introduction of the new, highly-efficient, ZF 8HP70, 8-speed automatic gearbox, combining smooth shifting and improved fuel economy. The combined fuel consumption for the 211PS (208HP) engine has been reduced from 30.7mpg to 33.2mpg and the 256PS (252HP) engine from 30.7mpg to 32.1mpg. In conjunction with the new 8-speed gearbox, the Range Rover Sport comes equipped with the rotary gear shift selector and steering wheel-mounted paddle shift.
The awe-inspiring 5.0 LR-V8 Supercharged remains unchanged for 2012, continuing to offer supreme power and sublime refinement.
Design and equipment levels have moved up a level too with exterior colour changes to detailing, and new interior colour ways for the Autobiography Sport and Limited Edition. A new powered tailgate has also been introduced for the majority of markets across the range for 2012, enabling drivers to set their desired lift height.
The latest version of the entry level 3.0 LR-TDV6 diesel delivers 211PS (208HP) at 4,000rpm and 520Nm torque at 2,000rpm with CO2 emissions reduced from 243g/km to 224g/km thanks partly to a new, low-flow fuel injection system. Output of the 245PS (241HP) engine has been increased to 256PS (252HP) at 4,000rpm with maximum torque of 600Nm at 2,000rpm and a reduction in CO2 from 243g/km to 230g/km.
Both versions of the 3.0-litre diesel are equipped with the same parallel sequential turbocharging system. Throttle response is staggering with maximum torque available from only 2,000rpm. The 3.0-litre diesel can significantly out perform its rivals by delivering 500Nm in only 500 milliseconds from idle. This means drivers have instantaneous access to 83 percent of maximum torque. When it was introduced in 2010, the parallel sequential turbocharging system was the first of its kind to be fitted to a V-engine anywhere in the world. The twin turbochargers work sequentially to provide best in class torque at low speeds and pack a huge punch at high speeds.
Driving a turbocharger requires pressure from the exhaust, creating pumping losses in the engine and increasing fuel consumption. To minimise this effect, valves isolate the secondary turbocharger both from the exhaust stream and the engine inlet tract when it is not required. A balance pipe connecting the two manifolds allows the gas from both manifolds to feed through the primary turbocharger. A variable geometry, medium-sized turbocharger is in use most of the time during average acceleration and up to motorway cruising speeds and performs with no discernible lag. It is a more efficient system than series turbocharging in which the smaller primary turbo increases pumping losses.
The 3.0-litre diesel set new standards of refinement and fuel economy with its third generation common rail fuel injection system. Operating at 2,000bar, the piezo injectors are designed to minimise noise while optimising combustion. The system operates in 'metering mode' supplying just the right amount of fuel to the injectors rather than returning it to the tank and wasting pumping energy in the process. All diesel models are now fitted with a DPF and have an advanced EGR system to reduce NOx."The improvements to the 3.0 LR-TDV6 engine enhance the Range Rover Sport even further to continue to deliver the kind of stunning performance Range Rover Sport customers have come to expect,"said Paul Walker, Chief Programme Engineer.
Land Rover's remarkable 5.0 LR-V8 petrol engines continue to head the Range Rover Sport powertrain range in 2012. With the supercharged version developing 510PS (503HP) and 625Nm torque and the naturally aspirated version, 375PS (370HP) and 510Nm torque, they set new standards in petrol engine design when first introduced, packed as they are with innovation design features aimed at boosting both performance and economy. Despite the supreme levels of power and torque, the 5.0 LR-V8 naturally aspirated meets both the European EU5 and ULEV 2 emissions standards and has CO2 emissions of 327g/km. The 5.0 LR-V8 supercharged is just as efficient with CO2 emissions of only 348g/km.
The centrally-mounted, multi-hole, spray-guided fuel injection system delivers fuel at a pressure of up to 2175psi(150bar) directly to each cylinder. The injectors are positioned to deliver fuel precisely to the centre of the combustion chamber for maximum air-fuel mixing and accurate combustion control. The charge cooling effects of the direct injection system allow a high compression ratio of 11.5:1 which further improves engine efficiency. During the engine warm-up phase, the combustion system employs multiple injection mode strategies to deliver 50 percent more heat for fast catalyst warm-up and substantially reduced emissions.
As standard on the Range Rover Sport 5.0 LR-V8 supercharged petrol and as an option on the 256PS 3.0 LR-TDV6 only, an Adaptive Dynamics system is available which operates in conjunction with the existing Dynamic Response system. With Adaptive Dynamics, DampTronic Valve Technology™ replaces conventional dampers and monitors damper pressure 500 times a second, continuously adapting to surface conditions and driving style thanks to an active valve technology. The chassis is complemented by high performance braking systems which include four-piston opposed calliper front disc brakes on the diesel models and lightweight aluminium, six-piston Brembo callipers for the supercharged models. A variable ratio steering rack improves stability in high speed cruising and increases driver involvement on twisting roads. The high performance character of the Range Rover Sport chassis is further emphasised by the Roll Stability Control system which responds to steering inputs from the driver and intervenes by braking individual wheels if the possibility of a rollover is detected.
A new powered tailgate has been introduced for the majority of markets across the range for 2012. Operated by the button located on the fascia, the key fob or tailgate, the lift height can now be set by simply holding the tailgate at the desired height and pressing the tailgate button for 10 seconds. The height can be overridden to accommodate other drivers, providing effortless use and greater convenience to the user.
For the Range Rover Sport, there are changes to the rear tailgate graphics to create a distinctive new look and a Gloss Black treatment to the headlight inners and grille surround. The S and SE derivatives now sport a Dark Atlas grille whilst the HSE takes on the Light Atlas. The Supercharged model can now be fitted with a new 20" alloy wheel option finished in Sparkle Silver with high-gloss lacquer and adopts the Atlas grille surround. The Limited Edition is equipped with the Gloss Black five-spoke wheels with Diamond Turned face. Interior colour ways on both the Autobiography Sport and Limited Edition have been refreshed for 2012 with a headlining option of Ebony Morzine joining the interior line-up. Subtly revised colour schemes to the grille and fender vents, bonnet badges and tow-eye, as well as body colour door handles, have been made across the range.
Source: Land Rover press