The Mercedes-Benz R-Class is a luxury multi-purpose vehicle introduced by Mercedes-Benz for the 2006 model year. It is the first full-sized multi-purpose vehicle ever produced by Mercedes-Benz. It was first seen at the 2002 Detroit Auto Show as the Vision GST (Grand Sports Tourer) concept, and the final production vehicle was shown at the 2005 New York International Auto Show. The R-Class was built on the W251 chassis, and is assembled in Vance, Alabama. It was priced between the M-Class and the GL-Class. It was initially marketed by Mercedes-Benz as a "Sports Cruiser" and later as a "Family Tourer".
The R-Class was offered in two wheelbases, 2,980mm (117.3in) and 3,215mm (126.6in), the latter being the sole offering in the US.
Models using the BlueTec diesel engine were introduced for the 2009 model year in certain markets, with other markets getting Mercedes' BlueEFFICIENCY technology.