Slottolution slotcar chassis fits to the body of the Tamiya Porsche 935, for example item 24001. As well as the Nichimo 935.
18D motors fits: Motor diameter max. 25mm, flat-diameter max. 19mm, lenght max. 37mm, diameter flange max. 9,5mm, distance screws 12-14mm
For example: Plafit Bison, Black Carrera Motor (Igarashi Motors)
If you want to use a different motor, please have a look into my shop.
Distance between front- and rear-axle: 94,5mm
Height of the chassis is adjustable +/-2mm
Showed front wheels have outer diameter of 23,5mm and width (all) 14mm
Showed rear wheels have outer diameter of 26,5mm and width (all) 19mm
(Frankenslot BMW M1 124 wheels
For question please watch linked Youtube video or write me a mail.