The FM-A Chassis (Japanese: FM-Aシャーシ, Efuemuē Shāshi) is a Mini 4WD chassis released by Tamiya. It was officially unveiled in the 56th Shizuoka Hobby Show which was held from May 11 to May 12, 2017. It was first equipped with the Rowdy Bull Mini 4WD car. The 'FM-A' stands for 'Front Midship Aero'.