If you were to guess the answer to this question right now, which model would you choose? For MY2011, Mercedes-Benz’s AMG division produces only five sedans in the United States: C63, CLS63, E63, S63, and S65. The lightweight C63 (451 hp) is very quick, but it’s not the most powerful. The CLS63 (507 hp), E63 (518 hp), and S63 AMG (536 hp) are powerful cars, but Mercedes-Benz has reserved the top spot for the S65 AMG. Its twin-turbocharged 6.0L V12 produces 621 hp and leaps from 0 to 60 in a mere 4.2 seconds. This car must be phenomenal to drive. And it can be yours for a starting MSRP of only $209,000. What a deal!