Land Rover's new hybrid models will be the most efficient models it has ever offered, while delivering "staggering" performance figures, uncompromised comfort and even greater refinement.
Australian buyers will get the chance to taste the new models in 2014, with the hybrids expected to join their regular petrol and diesel counterparts in the second quarter.
Announced way back in 2009, Land Rover's new hybrid system is the product of a joint development with sister brand Jaguar, under the auspices of Indian owner Tata and the British government's Low Carbon Vehicle funding program.
Both models in the new Range Rover Hybrid range are driven by the company's familiar SDV6 diesel engine, mated to a 35kW electric motor integrated into the eight-speed ZF automatic transmission.
Together, Land Rover says the diesel-electric system will deliver 250kW at 4000rpm and a handy 700Nm of torque, making for SDV8 levels of performance.
Including a lithium-ion battery pack, the whole hybrid setup adds nearly 120kg to the kerb weight of both models - but, thanks to the new all-aluminium construction of both, the impact is minimal.
Land Rover says the Range Rover Sport Hybrid will hit 100km/h in 6.7 seconds with both systems engaged, and the larger Range Rover will get there 0.2 seconds later.
Importantly, the hybrid system claims a 26 percent improvement to fuel use and carbon emissions, dropping to 6.4 l/100km and 169g/km for both.
An electric-only driving mode is available for inner-city driving, and Land Rover says drivers can expect speeds up to 50km/h for nearly two kilometres before the diesel engine will have to speak up.
Both models feature a regenerative braking system, and Land Rover promises that interior space remains uncompromised. There's still a full-size spare, and still a 5+2 seating arrangement for the Sport.
And, crucially, Land Rover promises both models will continue to uphold the brand's legendary off-road reputation.
Land Rover will prove the new models over a 16,000km trip that embarks this week, leaving the company's UK offices and heading to Mumbai in India. The journey will take the big 4WDs through the legendary 'Silk Trail', covering 12 countries.
Watch for the new models to hit Australia in the second quarter of 2014.
Pictured: 2014 Range Rover Hybrid. Sport images still to come.