The seven-passenger crossover, built on the 'D' platform which also underpins such as Nissan Maxima and Quest, brings Infiniti into a new segment, one that continues to grow.
Its target, to judge from Nissan North America's chief designer Alfonso Albaisa's constant references, is the Audi Q7, although there are quite a few contenders in the premium mid-size Crossover field.
Among JX's selling propositions will be a new emphasis on interior luxury, reflecting Japanese traditions in craftsmanship, instead of mimicking German or British influences as most competitive Japanese manufacturers have done.
Infiniti tried this before with the first Q45 luxury sedan, and the North American buyer basically wasn't interested.
Albaisa feels the time is now.
Such things as new ways of applying lacquer to wood trim pieces give the JX a unique ambiance.
And while the interior is not made of paper, some of the design motifs used in ancient Japanese paper-making techniques are reflected in JX's interior.
A shame I couldn't get close enough to the car to take snaps of the interior - I'll update this when I can.
And yes, that IS the 'crescent-cut' rear roof pillar.