At 3,417 pounds, the SLS AMG Black Series has dropped a total of 154 pounds compared to the SLS AMG GT. Some of the numbers ... forged alloy wheels, rear diffuser and the vented side skirts ...
You can read about the vast array of technical changes AMG has instigated on the Black Series here, but suffice to say this is an awful lot more than a GT R Pro with an even sillier wing on the back.