9. 2011-2012 Mercedes-Benz SLS AMG
6.2-liter V-8; 563 hp @ 6800 rpm; 479 lb-ft @ 4750 rpm
When AMG set out to build its first unique sports car model, it made sure to incorporate a number of historical trademarks. Gullwing doors? Check. Alloy body-in-white? Check. 6.2-liter V-8? Absolutely. For SLS service, the six-two received a new intake with eight velocity stacks, a less constrictive exhaust, forged pistons, and a few other internal tweaks. The result is an eight-cylinder that throws down 563 hp, 479 lb-ft, and snarls, crackles, and pops on over run like a Panzer tank huffing nitrous.