[. . . ] This product is a special version of the MINI-Z Racer MR-03 Series including selected race-ready optional parts. [. . . ] This product is a special version of the MINI-Z Racer MR-03 Series including selected race-ready optional parts. Please use this instruction sheet together with the main instruction manual included with the model. (The chassis shown on the instractions of the optional parts are not the MR-03 but can be installed the same way. Continue to use the 2mm and 3mm plastic bushings that are installed on the rear left. Refer to spare parts list on page 66 and 67 of the instruction manual regarding spare parts not listed above. [. . . ] Continue to use the 2mm and 3mm plastic bushings that are installed on the rear left. [. . . ]