If you happen to be the Head of State of a controversial nation, have a lot of enemies, or you are just plain paranoid, BMW's latest X5 variation may be just right for you. It's called the BMW X5 Security, and it has been armored by the factory to protect its occupants against some serious firepower (BMW claims safety class "VR4" to resist the penetration from a .44 Magnum, .357 Magnum, or a nine-millimeter Luger). While BMW is understandably silent about specifics, we do know that the body panels (including the roof and trunk) have been reinforced with a ballistic-resistant armored fiber developed in the Netherlands. The windows are upgraded to laminated 22-mm thick security glass, and a camera system with intercom keeps the passengers informed of what's happening outside their isolated cocoon. To handle the extra mass (you know its packing some weight) the Security package is bundled to the X5 4.8i model with its 4.8-liter 350-hp V-8. Nearly indistinguishable from the regular model, BMW has reportedly attempted to maintain the X5's driving dynamics with upgraded suspension and brakes. It's apparently no slouch, but we have yet to see any armored car that is considered exceptionally nimble.
Source: Auto Blog