By LAWRENCE TAN Since its early coachbuilding days, niche German automaker Wiesmann has graduated to styling and making its own retro-looking coupes and roadsters. The company celebrates its 20th anniversary this year, and has lined up a fleet of special editions for the occasion. Heading the special editions is the GT MF4-S, with a BMW M3-sourced engine (a 4.8-liter V8) and tuned to 420hp, which ups the ante over the standard MF4 producing 367hp

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Wiesmann Celebrates 20th Birthday with Special Edition GT MF4-S