Tamiya Mini 4wd 95384 MA Reinforced Chassis (Red) [Mini 4WD Limited]
From the Tamiya website:
Give your MA chassis machine a stylish, pure look and more toughness with these red ABS-polycarbonate MA chassis parts. Both chassis and A parts are molded in white. Please note that the reinforced material may cause tight screw fit.
Compatible Chassis: MA Chassis cars