This is one car we hope we'll never need to drive. The Mercedes S600 is essentially a vehicle you'd want to own if someone wanted you dead.
Literally an armored passenger car, the appropriately named "Guard" will drive with flat tires, automatically extinguish fires, and keep smoke out with a special air-filtration system. The bulletproof vehicle is built on its own assembly line and, according to Motor Authority, can withstand "military-standard small-arms projectiles, hand grenade fragments, and other explosive charges." (See the Mercedes promotional clip on Google Video below.) Oh, and it has a 512-horsepower V12 engine that will come in handy for quick exits.
Hummers? They're for sissies.
(Photos: Mercedes-Benz USA)