Mercedes-Benz SL63 AMG

I'll admit it -- I'm a sucker for the AMG-designed 6.2 liter V8 that powers all of Mercedes' 63-series AMG cars. The engine is strong as an ox and makes fantastic noises whether it's running full-bore up a freeway onramp or just idling at the curb. Take all that motoriffic goodness and pack it into a rich man's tin-top convertible, and, well, that's the Mercedes-Benz SL63 AMG. Fast, loud and beautiful -- what's not to love?