The Mercedes-Benz G-Class or G-Wagen, short for Geländewagen (or cross-country vehicle), is a four-wheel drive vehicle SUV. The G-wagen is characterized by its boxy styling and body-on-frame construction. It utilizes three fully locking differentials, one of the few vehicles to have such a feature.
A multifunction steering wheel is standard on all 2004 models. New alloy wheels, a chrome grille and body-color bumpers plus a more luxurious cabin were introduced too. New dynamic control systems include the Electronic Stability Program (ESP), Brake Assist and the 4 wheel Electronic Traction System (4 ETS) were available as well.
Source: Wikipedia, 2012