The wet multi-clutch plate in the differential is infinitely variable depending not only on slippage but also on throttle opening and engine rpm. There are no levers or switches necessary to activate the system. The handling is delightfully nimble making the QX4 easy to drive. The interior is stylish and well laid out. It's my favorite.
Instrumentation is well placed and easy to use.
The front bucket seats are supportive and the view outward is excellent. There's adequate room for two adults in the second row of seats. A third person would be a squeeze especially if the adults are just slightly horizontally challenged. The weakest point of the QX4 is its engine. Merging into freeway traffic can also be accomplished without incident but it takes a lead foot.