Slottolution slotcar chassis fits to the body of the Lancia Stratos Group 5, for example item Tamiya 24003 / Heller 80760 / Airfix 06405-9).
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: 91,0mm
Height of the chassis is adjustable +/-2mm
Showed front wheels have outer diameter of 23,5 mm and width (all) 15mm
Showed rear wheels have outer diameter of 26mm and width (all) 15mm
(Frankenslot tyres, inner diameter 17mm, with Slottolution wheels outer diameter 18mm)
For question please watch linked Youtube video or write me a mail.