OPEN-TOP STORMER; Meet the maddest Mercedes of all.(News)

Byline: GREG KABLE Sometimes it's best not to ask why, and simply be grateful a car exists at all. That's the way it is with the CLK DTM cabriolet, arguably the most outlandish Mercedes-Benz road car ever put into production. Attempting to make sense of this 5.4-liter, 582-hp supercharged V8-powered monster is a pointless exercise-the car makes no rational sense. But with a 4.0-second 0-to-62-mph time and a top speed limited to 186 mph, who needs rational? Billed as the world's fastest four-seat open-top, this breathtakingly expensive car is proof Mercedes will occasionally ...