Both models share an identical hybrid powertrain, using Land Rover's 3-litre SDV6 diesel engine integrated with a 35kW electric motor, and delivering power through an 8-speed ZF automatic transmission.
The new hybrid delivers performance to rival that of Land Rover’s SDV8 engine, developing 335bhp at 4000rpm and enabling both models to accelerate to 62mph (100kph) in under 7 seconds. Fuel consumption is also improved, reaching 44.1mpg (combined), and CO2 emissions are reduced by 26% to 169g/km – just a whisker away from the current 150bhp Td4 Freelander 2. The hybrid system, including lithium ion battery pack, inverter and electric motor adds less than 120kg to the standard vehicle’s weight.
Running in manually-selectable EV mode, the electric motor will power the vehicle to 30mph with a range of up to one mile, before the diesel engine automatically restarts. With both units running in tandem, the electric motor provides a torque boost of 125lb ft and also acts as a generator, charging the battery with energy recovered through regenerative braking.
The ‘Premium Lightweight Architecture’ underpinning both vehicles was designed with the integration of hybrid technology in mind, enabling both models’ interiors to be unchanged. Off-road ability should remain uncompromised, as Terrain Response® 2 is retained from the standard vehicles, and wading depth and ground clearance remain the same.
To demonstrate the capabilities of the new technology, three Range Rover Hybrids are preparing to embark tomorrow (Thursday, August 22) on an epic voyage from the home of Land Rover in Solihull, UK, to the home of its parent company Tata in Mumbai, India, where they are scheduled to arrive on October 15. Coined 'Silk Trail 2013', the expedition will travel 10,000 miles (16,000 km) on some of the world's most challenging roads, passes and trails. The itinerary incorporates the historic 4,000-mile Silk Road connecting Asia with the Mediterranean, which has never before been undertaken by hybrid vehicles.
Hybrid Range Rovers and Range Rover Sports will be available to order in the UK from September 10, with first deliveries in early 2014.