Here some additional Information. It is a dished 12" Moto-Lita MK4 with a special made adapter to fit the 3-point Mount of the M3W. It is handcrafted by a friend of mine. The original steering wheel is too big (in diameter) for me...
once: Black M3W with „Jaffa“ leather; 2015 now: Sport grey 4/4 with black leather; 2017