Tune up your model with Slot.it parts and motor mounts! This chassis (code S10-ST1) is designed to fit under Carrera DTM BMW M4 2014 body (for example 30738), and is fully compatible with Slot.it parts and motor mount. It is also easily compatible with Slot.it oXigen chip or Carrera digital chip 26732 (for D132 you may need the special adapter clip S99-S02 available separately). Visit http://www.slot.it/Download/FAQ_PDF_en/16-DTMCarrera3DFab.en.pdf for a suggested list of parts to be used with this chassis. This product is not a toy and it's only suitable for model makers of at least 14 years of age. This is not a Carrera product, and we are in no way affiliated with Stadlbauer Ag.