The next time someone tells you their Mercedes-Benz drives like a tank you might want to take them seriously.

The Mercedes-Benz S680 4Matic Guard is a fully armored version of the luxury sedan. (Mercedes-Benz)

The luxury automaker has launched a fully armored version of its latest S-Class flagship sedan.

The S680 4Matic Guard is the latest in a line of security vehicles the automaker offers customers looking for more than crash safety. The full-size sedan has been outfitted with bullet proof glass and armor plating with a B7 rating, which means it can withstand fire from assault weapons, including AK47s and M16, as well as long-range sniper rifles.

(Mercedes-Benz)

Full details on its protective capability are provided to customers, but it is also understood to be able to withstand some explosive devices and can be equipped with a sealed cabin and oxygen system along with a built-in fire suppressor, according to Germany's Stern magazine.

The S 680 Guard 4Matic is one of the most customer-oriented products from Mercedes-Benz. Because this special protection model focuses on people and their safety," S-Class product chief Dirk Fetzer said.

(Mercedes-Benz)

The updates are entirely concealed in the design of the S-Class, which looks like any other from the outside save for its Michelin Pax run flat tires.

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The changes nearly double the weight of the car to 9,250 pounds and it is only being offered with all-wheel-drive and a 621 hp V12 engine as a result.

Each car takes 51 days to build and Stern reports that prices run around $600,000.

HERE'S HOW TO CRUSH A CAR WITH A TANK: