Ann: Range Rover Sport SV revealed with Carbon Revolution wheels, page-26

From the highly regarded 'evo magazine' - Full article here

"Weight saving might seem incongruous in the context of a 2560kg SUV, but Land Rover offers optional Brembo carbon ceramic brakes to reduce unsprung mass by a significant 34kg, with optional 23-inch carbonfibre wheels – the largest of their kind and a world first according to Land Rover – trimming a further 35.6kg. Regardless of the wheel size and finish the SV is equipped as standard with a set of Michelin all-season tyres".

To a motoring enthusiast, in fact anyone that enjoys driving, the saving of 70kgs of unsprung weight is critical because it means less weight for the springs and shocks to control, the wheels respond faster and the suspension keeps the tyres in even contact with the road for longer, eg consistent grip and secure roadholding. And when you have a 4.4-litre twin-turbo V8 beast producing 467kW of power and 750Nm of torque consistent grip and secure roadholding becomes very, very important.