The 2006 Mercedes-Benz R-Class takes the GST concept and merges it with a traditional Mercedes-Benz style that prizes subtle cues and refinement over bold lines or striking stance. The R-Class follows along the design cues of the new CLS, with a sweeping hood line and dramatic front and rear curves. Of particular note is the front headlight and hood treatment, which has a certain CLS-modern-yet-retro look.