The SL 65 AMG Black Series is a performance version of the SL 65 AMG.  The turbochargers were 12% larger, and the optimised wastegate ducts permit increased air throughput.  Intake air ducting and exhaust system were modified to improve response and reduce the exhaust gas backpressure.  The vehicle was made 250 kilograms (550 lb) lighter than the standard SL 65 AMG by the use of light carbon fibre composite (CFRP) parts.  Another big factor in weight reduction was removing the foldable hardtop roof, replacing it with a fixed roof.  Not only did this save much weight, it also made room for the retractable rear spoiler.

The AMG Speedshift Plus five-speed automatic transmission include "C", "S", "M1", and "M2" (which has gearshift times 25 percent quicker than the "M1" mode).  The Black Series front axle track width is 97 millimetres wider and the rear axle track width 85 millimetres wider than the standard model.

Other changes include a retractable rear spoiler and the rear apron with diffuser fins, 265/35R19 front tyres with 19x9.5 inch AMG light-alloy wheels and AMG 20x11.5-inch light-alloy wheels with 325/30R20 tyres (Dunlop Sport Maxx GT tyres), 6-piston front calipers with 390x36mm discs and 4-piston calipers with 360x26mm discs.

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