The 2013 M-Class document discusses the capabilities and innovations of the Mercedes-Benz M-Class SUV lineup. It highlights the M-Class as an SUV that continues to lead in unexpected performance, unprecedented safety, and unparalleled refinement. Some key safety and driver assistance technologies discussed include Collision Prevention Assist, which uses radar to warn of potential front impacts, PRE-SAFE that prepares for collisions, and Attention Assist that detects driver drowsiness.