http://www.euroncap.com/results/mercedes_benz/m_class/2011/455.aspx
Frontal Impact takes place at 64 Km/h, 40% of the width of the car striking a deformable barrier. In the side impact, a mobile deformable barrier impacts the driver's door at 50 km/h. In the pole test, the car tested is propelled sideways at 29km/h into a rigid pole.