Shown here in nearly production ready form, the Vision R presages the R-class coming to the U.S. It's Mercedes-Benz's version of the Chrysler Pacifica and it will be the larger of two sport touring models; the smaller one will be the B-class. Expect the production car's interior to look a lot like this and for features like versatile six-passenger seating and all-wheel drive to carry over. M-B's excellent new 3.5-liter V-6 likely will be the initial engine offered in the R-class when it makes its way stateside.