By the end of Barrack Obama’s presidency, his official limousine was showing its age. So he ordered a series of all-new limousines for his successor–to the tune of $15.8 million. General Motors won the contract and what it came up with is badged as a Cadillac and looks like a custom-built limousine. But it rides on a heavy-duty truck frame and features armor from GM’s most cutting-edge military vehicles. GM built 12 models, which arrived at the White House during Trump’s presidency and were immediately nicknamed the “Beast.”

The Presidential limousine is officially called “Cadillac One” by secret service. It’s also called the “Parade Limousine” because when the President is traveling incognito he hops in an SUV with blacked-out windows instead. But when the President wants to make a splash, his Secret Service drives a motorcade of armored Chevrolet Suburbans (specially built on a 3/4-ton truck chassis), and the boss gets the custom Cadillac limo. It’s a bit of vanity with a purpose: The Beast gets flown to various locations worldwide ahead of POTUS. Cadillac One is a symbol of the U.S. executive branch all over the world and is instantly recognizable in parades. Rumor has it that Trump showed automotive enthusiast Kim Jong Un around his “beast” at a convention and the dictator was so smitten he immediately asked his own people to smuggle an Escalade into North Korea.

The “beast” name is fitting. From afar, Cadillac One looks a bit like a stretched DTS. But if you see it up close, it’s obvious it’s built on a massive, long-wheelbase GM truck chassis. All its bodywork is custom, shaped like a sedan but much larger.

Why is the President’s limo so big? Because with everything it must haul, it weighs in at 22,000 pounds. First and foremost is the armor: Its doors are eight-inches thick. Its windows are five fused layers of armored glass and polycarbonate, far too thick to roll down. Its underbody is lined with steel plates to defend against roadside bombs. Even the tires are bulletproof kevlar. But if they are ever punctured, its steel rims are engineered to be driven on.

The second reason for the Beast’s size is all its gadgets. Obviously, it has an arsenal of weapons for the Secret Service agents inside–including pump action shotguns. Of course it has GPS, satellite phones, and night vision. It has a system that can put out a nearby fire. The Beast is completely airtight with filtration systems. It even can disperse a smoke screen and drop an oil slick, like something out of James Bond.

One of the more grizzly aspects of the Beast is that it contains a cooler for bags of the President’s blood. That’s right, the President regularly has blood drawn, just for the Secret Service to keep around in case he needs a quick transfusion.

While the Secret Service won’t allow anyone to take pictures inside of the Beast, they have confirmed that it’s a luxurious Cadillac in there. It features leather seats with a massage function and wood trim from a tree George Washington planted.

You can check out the the Beast yourself and hear an interview with the Secret Service agents who serve as the car’s driver and mechanic in the video embedded below: