A merica now has its 44th President. And continuing a tradition that's almost as old as the automobile itself, President Barack Obama will cruise in an all-new Cadillac Presidential Limousine.

The completely redesigned limo replaces the Cadillac DTS Presidential Limousine introduced in 2004 and while official details of the car's drivetrain, on-board tech and armored capabilities of course remain top secret, we do know a little bit about it. So which Cadillac is it, you ask? It's like nothing else on Earth-a complete custom, which picks up parts and components from across the entire Cadillac range. The chassis might actually be based on the GMC Topkick truck, because they knew that with all the security, it was going to be heavy! It's been described by some as a 'tank on wheels'. To give you an idea of how heavy it may be, the 6500cc diesel engine will endow it with a top speed of about 100kmph.

It's equipped with five-inch thick bulletproof glass all around and high strength ceramic armor on every body panel. The only window that opens is the driver's window, and that too only by 3-inches. Just to enable the driver to talk to someone outside. Rockets, armor-piercing missiles, mines; they'll all fall by the wayside. Everything is sealed too, so the occupant can withstand a chemical attack. The tyres are kevlar reinforced, shred and puncture-resistant with steel rims specially designed to allow the car to get away at high speed even if all the tyres have been shredded away. At the back is a complete mobile office and a direct line to the Vice President and the Pentagon. Oxygen tanks, armor plated fuel tank, fire fighting system, night vision cameras and bottles of the Presidents blood group all comes as standard.

An interesting tidbit: the U.S. flag and the presidential standard flown on the front of the vehicle are illuminated by high-tech LED spotlights. A little bling for the new African-American President please!