At the core of Rainier's quiet ride quality are best-in-class body-stiffness attributes. With its all-out dedication to isolation from road noise and vibration, Rainier achieves sound levels some 25 percent better than its typical competition, matching or exceeding many luxury cars, even at highway speeds. Rainier's impressive acoustics are the result of careful attention to detail in body fit, component isolation, exterior aerodynamics, sealing and the fine-tuning of all related elements to achieve the most desirable frequency ranges.

Beyond its contribution to a noticeably quiet passenger compartment, Rainier's exterior design also complements its suspension system in crosswind situations. In tests at 35 mph, with 90-degree crosswinds, Rainier remains very stable thanks to an aerodynamic side profile that helps minimize forces transferred to the chassis from wind-created side loads.

While Rainier's forward-looking design goes hand-in-hand with its silky street and highway performance, beneath its cosmopolitan styling lives a very nimble and robust platform, capable of bounding over an unpaved, two-track trail or tackling any number of off-road conditions that are off-limits to conventional passenger cars.