MercedesBenz S600 Guard VR9 protection levels

The S600 Guards protection levels are officially rated at the militaryVR9 grade for both thetransparent and nontransparent areas. This means itll stop bullets from a highpowered, extra armourpiercing rifle travelling at 2,800ft per second thats around 1,910mph.
The VR9 rating also means itll shrug off shrapnel from hand grenades, hence why the cars window glass is this thick.