Tune up your model with Slot.it parts and motor mounts! This chassis (code S09-ST2) is designed to fit under any Scalextric McLaren MP12-4C GT3 body (for example C3253), and is fully compatible with Slot.it parts and motor mounts. It is also easily compatible with Slot.it oXigen chip O201b1 or Slot.it SSD SP15. Cockpit must be replaced with Slot.it Lexan part (S09-XA1) or the replacement cockpit available on Shapeways (McLaren MP12-4C GT3 cockpit S09-SA1). This type of chassis comes with the 'standard type' pickup holder. Due to the nature of 3D printing, some adjustment may be necessary. Read the for a suggested list of parts to be used with Scalextric models. This product is not a toy and it's only suitable for model makers of at least 14 years of age.