The king of the luxury 4WDs will go on a diet for it’s next generation, but it’s a diet plan that will take 15 years. A new lighter Range Rover is being proposed by Land Rover engineers for the 2012 model year, using stablemate Jaguar’s rivet-bonded aluminium monocoque chassis technology.

This construction technique will save the new L405 Range Rover nearly 500kg, improving it’s fuel consumption, power, and so many other variables. It will also have a shorter roof so that it’ll look less top heavy. A hybrid drivetrain is also in the works – we don’t really expect petrol prices to have improved much by 2012.