Mercedes Benz SL 65 AMG Black Series. Not to ruin it for the ultra exclusive Black Series owners, but according to Mr. Clarkson, this is the most uncomfortable car in all of human history.

Either way the fixed roof SL features loads of carbon fiber body work, about half a foot wider track, fully adjustable coil over suspension and a 661 HP twin turbo V12 making it one of the most extreme AMG models of all time.

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