Its adaptive air suspension, full-time all-wheel drive, locking differentials and extra-low range all combine to make the Range Rover capable of going just about anywhere you'd think to try and drive, and to conquer some slopes you couldn't ascend without a climbing rope.

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For example, all Executive models are equipped with Adaptive air-suspension featuring Porsche Active Suspension Management (PASM), which combines superior performance and enhanced ride comfort.

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When you flip the switches to Sport Plus freeing up the engine, transmission, the adaptive air-suspension and chassis systems' software the GTS gets loud, low (minus-15mm ride height from Sport), firm and feisty.

WSJ: 2013 Porsche Panamera GTS Review: The Car for Today's Jay Gatsbys? | Rumble Seat by Dan Neil