Vorsteiner’s Mercedes CLK 63 AMG ‘Black Widow’The Vorsteiner is back with its new tuner kit for Mercedes-Benz CLK63 AMG Black Series called ‘Black Widow‘. Determined to delicately improve the looks of the CLK, Vorsteiner have designed operational rear and front spoilers which are made of lightweight dry carbon-fibre.Vorsteiner said that the spoilers improve down aerodynamics and force during the