Slottolution slotcar chassis fits to the body of the Mazda / Savanna RX-7, for example item Aoshima 047453.
18D motors fits: Motor diameter max. 25mm, flat-diameter max. 19mm, lenght max. 37mm, diameter flange max. 6,5mm, distance screws 11-13mm
For example: Slotdevil 4020, Johnson 20543 etc.
If you want to use a different motor, please have a look into my shop.
Distance between front- and rear-axle: 102,0mm
Height of the chassis is adjustable +/-2mm
Showed front wheels have outer diameter of 25,5 mm and width (all) 18mm
Showed rear wheels have outer diameter of 27mm and width (all) 159mm
(Frankenslot tyres, inner diameter 16mm, with Slottolution wheels outer diameter 17mm)
For question please watch linked Youtube video or write me a mail.