http://www.edmunds.com/insideline/do/Drives/FullTests/articleId=125334 --- Everything you need to know about the 2008 Mercedes-Benz C63 AMG is made clear the instant you prod its 451-horsepower V8 engine to life. When the 6.2-liter beast lights off, the engine revs spike in a programmed -look at me- blip before the Merc's idle settles into a deep, throaty burble. Cue the goose bumps. We haven't yet released the brake or slotted the shift lever into gear, and we're already trying to figure out an angle to finance one of these muscle-bound sport sedans, all $54,625 of it. But we have to wonder if the 2008 Mercedes-Benz C63 AMG — essentially a hot-rod C-Class sedan — can possibly deliver the goods in direct proportion to this testosterone-infused exhaust note. There's only one way to find out.