Diesel power rarely suits a large luxury SUV as naturally as it does the X7 xDrive35d, where 620 Nm of torque from the 3.0-litre inline-six creates a kind of effortless, rolling authority that makes the car feel entirely unbothered by whatever it is asked to carry or cover. This is the Pure Excellence grade, which in the Japanese domestic market sits at the very top of the X7 lineup, and the specification reflects that position without needing much elaboration. The adaptive two-axle air suspension is the mechanical heart of the experience, continuously adjusting the ride to suit conditions and making the X7 feel genuinely composed in a way that body-on-frame alternatives simply cannot match. Inside, the six-seat cabin is finished in Premium Vernasca leather throughout, with heated and ventilated seats in both the first and second rows, powered front seats with memory function, and ambient lighting that gives the interior a calm, considered quality after dark. BMW Live Cockpit Professional integrates a pair of 12.3-inch displays into one continuous widescreen interface, operated through the iDrive controller with both touch and voice inputs, and wireless Apple CarPlay and Android Auto are standard alongside it. The Harman Kardon surround sound system, panoramic sunroof, and powered tailgate complete a specification that clearly came together with purpose rather than compromise. As a three-row All-Wheel Drive luxury SUV sourced directly from the Japanese domestic market in its highest domestic trim, this X7 is a thoroughly coherent proposition.