Instead of the original body-on-frame truck-style design, this new one has welded unibody construction with isolated front and rear subframes, a technique that emphasizes high strength and low weight, and reduces the overall height, making it easier for families to get in and out of.It's been re-proportioned, too. The wheelbase is almost four inches longer, the body almost six inches longer, and nearly three inches wider, all the better to accommodate larger American individuals and families, and an indication that the original was simply too small. In the bargain, the coefficient of drag or Cd number, has dropped from a bricklike 0.40 to a sylphlike 0.34, on a par with many passenger cars that are much lower to the ground. This means quieter highway ride and better fuel economy.The new look and larger size are accompanied by a new double-wishbone front suspension and a new four-link independent rear suspension. The optional side-facing rear seats of the old model are gone. This is strictly a five-seater (which makes room in the lineup for the new R-Class six-seat sports tourer.