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An aluminum-alloy V-8 powers both Range Rover models. This advanced powerplant has been the beneficiary of significant improvements for durability, smooth operation, low maintenance and low emissions. For example, the cast aluminum block features cross-bolted main bearings and steel cylinder liners for reduced vibration and increased durability. Stainless steel exhaust manifolds resist rust and lower exhaust emissions. And a distributorless ignition system uses four coils and a sophisticated computer to determine the precise instant to fire each spark plug. With 190 horsepower and 236 pound-feet of torque, both at relatively low rpm, the Range Rover 4.0 SE's 4.0-liter V-8 offers superb flexibility and responsiveness for on-road travel and off-road adventure.
The exclusive Range Rover 4.6 HSE is even more spirited. With an additional 35 horsepower and 44 pound-feet of torque, plus low-profile 18-inch tires, the 4.6 HSE is a more sporting ride, while still retaining the attributes for which all Range Rovers are legendary.
Both engines are matched to an electronically controlled four-speed automatic transmission. An innovative H-gate selector engages the automatic transmission and can shift the transfer gearbox from High to Low Range with electronic ease.
Within this transfer box is a center differential plus a viscous coupling to transfer power seamlessly to the axle with the greatest amount of traction. A standard electronic traction control system (a Land Rover exclusive) senses acceleration wheelspin at each rear wheel and "pulses" the brake of the spinning wheel, transferring power across the axle to the wheel with more grip.
Range Rovers are also equipped with large disc brakes at each wheel, reverse-ventilated in front for effective brake cooling. The special four-channel, all-terrain Anti-lock Brake System (ABS) can provide superior stability and control on any surface. Even the parking brake is specially designed, acting on the driveshaft to lock all four wheels instead of just two.
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