The GT Black Series is a high-performance variant of the Mercedes-AMG GT and was officially revealed on Mercedes-AMG's YouTube channel on 9 July 2020. The M178 engine in this variant is tuned to an output of 537 kW (730 PS; 720 hp) at 6,700–6,900 rpm and 800 N⋅m (590 lb⋅ft) of torque at 2,000–6,000 rpm. Referred to as the M178 LS2, the engine has a slightly higher redline at 7,200 rpm compared to the GT R's 7,000 rpm, and uses a flat-plane crankshaft instead of a cross-plane crankshaft, turning out in different firing order. Additionally, the M178 LS2 uses a larger compressor wheel, resulting in an increase in boost from the GT R's 135 to 170 kPa (19.6 to 24.6 psi). The GT Black Series accelerates from 0 to 100 km/h (62 mph) in 3.2 seconds though it was tested at 3.0 seconds and has a claimed top speed of 325 km/h (202 mph).[35]

The suspension is unique, with a carbon-fibre anti-roll bar with two adjustment settings for the front axle, and an iron anti-roll bar with three adjustment settings for the rear axle. Like previous Black Series vehicles, the camber is manually adjustable for both the front and rear…