This is the most extreme Mercedes SL yet.
The SL65 AMG Black Series will offer the same performance as an SLR but is set to cost £100,000 less than the £300,000 supercar.
Powered by the SL65's twin turbo V12, the SL Black Series will be subject to a serious weight loss programme and use new turbos to up power to over 650bhp, all of which should see it match the SLR's 0-60mph time of 3.8sec and come very close to its top speed of 206mph.
Almost entirely made of carbonfibre, only the do...
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