The 2014 Range Rover Sport brings a new option to the Sport line with a choice of two-speed or single-speed transfer case. While the Evoque doesn’t have true low-range, the Sport always had more Range Rover pedigree.
Here’s the official text on the subject:
Full-time intelligent 4WD systems
The new Range Rover Sport offers a choice of two full-time intelligent 4WD systems, each able to find drive on the most challenging low-grip surfaces.
One system provides a two-speed transfer case with low-range option for the most demanding off-road conditions, with a 50/50 percent default front to rear torque split. Optimum traction is maintained through an electronically controlled multi-plate clutch in the centre differential which distributes torque between the wheels at anything between 100 percent front and 100 percent rear. This is combined with sophisticated electronic traction control systems.
The transfer case offers selectable high and low range, using a two-speed fully synchronized ‘shift on the move’ system which allows the driver to change range from low to high at speeds up to 60km/h without having to stop the vehicle, providing exceptional driving flexibility. The high-range provides a direct drive ratio of 1:1, while the low range ratio is 2.93:1 giving an extremely low crawl speed.
The alternative system is 18kg lighter and features an all-new single-speed transfer case with a Torsen differential and 42/58 percent default front to rear torque split that is designed to provide a rear-wheel drive bias for optimum driving dynamics, whilst maintaining off-road performance. The Torsen centre differential constantly varies torque distribution between 62 percent front and 78 percent rear depending on conditions and grip available. The traction control system has been optimised to work in harmony with the differential to deliver excellent traction in all conditions.
To further optimise traction and stability in extreme conditions, more powerful Sport models are also specified with the Dynamic Active Rear Locking Differential in combination with the twin-speed 4WD driveline. The locking rear differential has been further optimised to work in conjunction with the electronic torque vectoring system.
And here’s something I noticed on those first interior pictures, along with the missing Low Range button, Rock Crawl is also missing from the Terrain Response 2 controls.
Here’s another shot, not as clear but this vehicle obviously has the two-speed traditional transfer case.