Mercedes Benz SL65 AMG Black Edition spotted on the 'Ring

It's hard not to think about the prodigious power slated to appear in the Mercedes Benz SL65 AMG Black Edition. A twin-turbo 6.0-liter V12 with 670 hp and and an absurd 738 lb-ft of torque can do that. Factor in a 570-lb weight loss courtesy of exoti...