First Adoption of "ATPC" Off-Road Cruise Control

British SUV brand Land Rover has unveiled the 2015 models of its flagship "Range Rover" and sportier "Range Rover Sport" in its home market. Key updates include the introduction of the "All-Terrain Progress Control System (ATPC)" to aid off-road performance, and improvements to the 6-cylinder engine's power and fuel efficiency.



The new ATPC system complements the high off-road capability of both models, reducing driver fatigue in challenging conditions. It functions as a low-speed cruise control, maintaining a desired speed without pedal input once released from a standstill or while moving. Crucially, the system continuously monitors the vehicle's status and optimizes traction in all situations, regardless of terrain such as steep slopes or rough ground.



This allows the driver to concentrate on steering. ATPC is particularly useful in off-road scenarios like steep inclines, uneven terrain, and low-grip surfaces. Speeds can be set between 1.8-30 km/h (1-19 mph) for both forward and reverse driving.



ATPC is an optional feature, available with the 3.0-liter V6 turbo-diesel "TDV6," the 3.0-liter V6 supercharged "SC V6" (currently available in Japan), and the "V8 Supercharged" when certain mechanical configurations are selected.

Land Rover Range Rover
Land Rover Range Rover Sport

Range Rover and Range Rover Sport Get an Update (2)

V6 Engines with Improved Power and Fuel Efficiency
Mechanically, both the gasoline and diesel V6 units have been refined to enhance performance and improve fuel efficiency. The Land Rover 3.0-liter V6 turbo-diesel "TDV6" engine has transitioned from a twin-turbo setup to a single ball-bearing turbocharger. Revisions to the two-stage oil pump and redesigned fuel injectors now produce a maximum output of 258ps and 600Nm of torque. Simultaneously, fuel efficiency has seen significant improvements: 8.5 percent for the "Range Rover TDV6" and 5.7 percent for the "Range Rover Sport TDV6."



The 3.0-liter V6 turbo-diesel "SDV6" engine, exclusive to the Range Rover Sport, retains its parallel sequential turbocharger but now delivers an increased maximum output of 306ps (up 14ps) and 700Nm of torque (up 100Nm) thanks to these enhancements. Furthermore, the adoption of a two-stage oil pump and improved fuel injectors has resulted in a 7 percent improvement in fuel efficiency, with a stated figure of 7ℓ/100km (approximately 14.3 km/ℓ).



Meanwhile, the 3.0-liter V6 supercharged gasoline engine benefits from a newly developed thermostat that accelerates the achievement of optimal operating temperature, and laser-processed injectors ensure more precise and efficient fuel delivery. Further friction reduction and efficiency gains are realized through an improved camshaft chain guide, a two-stage oil pump, and new coatings on the pistons and gudgeon pins. This results in a maximum output of 340ps and 450Nm of torque, with a 1.9 percent improvement in fuel efficiency.



Additionally, new optional features include a Head-Up Display (HUD) projecting various information onto the windshield and a fixed panoramic roof, both available for the "Range Rover" and "Range Rover Sport." New exterior colors have also been added, expanding customization options. This update does not include changes to the interior, exterior styling, or grade structure.



The introduction timing for the updated models in Japan has not yet been determined.