B4 vs B6 armored SUVs: what the ratings actually mean

What the ratings describe

B4 and B6 come from the European VPAM and CEN 1063 ballistic standards. A B4 vehicle is certified against handgun ammunition up to .44 Magnum. A B6 vehicle is certified against high-velocity rifle rounds including 7.62x51 NATO ball, which is a categorically different threat.

Certification applies to the whole protected cell: glass, door skins, pillars, roof, floor and firewall are all tested, not just the panels. A vehicle with armored glass and unarmored pillars is not rated at any level.

How they differ in practice

A B4 SUV typically carries 400–600 kg of added mass; a B6 SUV can carry 1,200–1,800 kg. That drives everything else. B6 vehicles need reinforced suspension, uprated brakes and run-flat inserts, they accelerate and stop more slowly, and glass thickness of 40–60 mm means windows generally do not open.

B4 rides close to a standard luxury SUV and is invisible to a passerby. B6 is also unmarked, but a trained observer will notice the ride height and glass depth.

Choosing a level

B4 is the right default for executive protection in low- and medium-risk cities where the realistic threat is opportunistic crime, express kidnapping or an aggressive approach at a stop. It covers the large majority of corporate movements.

B6 belongs to movements with a specific, assessed threat: a named individual, a hostile-environment posting, a jurisdiction with active rifle-armed crime, or a client whose own risk team has specified it. If your security advisor has written a level into the brief, follow the brief.

What the vehicle does not do on its own

Armor buys time and options; it does not make a movement safe by itself. Route planning with alternates, agreed safe stopping points, a chauffeur trained in defensive and evasive driving, and a communications protocol matter as much as the ballistic rating. A B6 vehicle sitting predictably outside the same entrance at the same hour every day is a weaker posture than a B4 with varied routing.

Lead time and availability

Armored fleets are small everywhere. In the Gulf, London, New York and most major European capitals 48–72 hours' notice is comfortable and same-week requests are usually deliverable. In secondary cities the vehicle may need to be repositioned, which is why an early brief always produces a better answer than an urgent one.