The Cadillac One has only just been unveiled, but it already has two nicknames: 'Obamamobile' and 'The Beast'. And it's ironic that just after Obama advocated a bailout for GM after years of building big, fuel-inefficient cars that nobody wanted, he's now had it build the ultimate one for himself.

Still, President Obama will be a targeted man come January 20th, when he's inaugurated as US President. So, the Cadillac One is shod in three-inch thick bulletproof glass and eight-inch think armour plating, and is hermetically sealed to protect him from a chemical weapons attack. It has a 10-disc CD changer, though, so it's not all doom-and-gloom.

There's a night vision camera in the front, and shotguns and tear gas cannons are stored in the flanks. There's even a few bottles of Obama's blood in there in case he needs an emergency transfusion - though who'll perform the operation is unclear.

The petrol tank is filled with a foam that prevents it from exploding along with a panic button in the Presidential quarters, as well as a satellite phone linking the car directly to the Whitehouse. The tires are Kevlar reinforced and puncture-resistant, too, and cover wheels that can still work even of the tyres are blown off.

That said, it's never getting anywhere particularly fast, as it has a 0-100 km per hour time of 15 seconds and 3.40km per hour fuel consumption, so at the equivalent of about $534,000 it probably provides the worst price-to-performance ratio of any car ever.