As previously reported, Wiesmann had to find a replacement for BMW's 5.0-liter V10, as the German automaker dropped the specific engine from its line-up. Fans need not to worry though, because Wiesmann stayed with Bavaria's finest. And by that we mean that Wiesmann opted to fit its GT and Roadster MF4/MF5 old-school-look sports cars with BMW's 4.4-liter V8 twin turbo direct injection petrol unit.