MUNICH—Later this summer, Audi will unveil its new flagship model. In the past, that role had been filled by the A8 , but that was before SUVs found so much favor; even in Europe, a majority of car buyers now swing that way. But forget Europe for a moment. The new Q9 is Audi’s first full-size SUV, underscoring the importance of the North American market. Late in development, the company even redesigned the cupholders to fit those giant insulated mugs that briefly became a retail obsession. We can only show this exterior-camouflaged Q9 for now, but the photos show the production interior. Or at least that’s one of the possible trims; if you want the interior to evoke more of an Endor or Tatooine feel rather than Mustafar, there are beiges and browns, including an interesting open-grain olive wood alternative to the coarse carbon fiber you see here. The mix of different textures really helps elevate the Q9’s interior, which leaves glossy finishes behind in favor of matte wherever possible.…