McLaren P1 (LEGO 42172)

About this set

This is the LEGO Technic McLaren P1 (42172), a supercar build badged on the box as LEGO TECHNIC | McLaren and McLaren P1. It comes in at 3893 pieces with a difficulty rating of 5/5, so it sits firmly in hardcore Technic territory. The finished car reads yellow over black, with black wheels anchoring the low stance. The standout features are the butterfly doors and the large adjustable rear wing; the wing's moving assembly lives in the rear section, so build that module and its linkage in one pass before closing the bodywork, or you will be pulling yellow panels back off. The V8 engine bay detail sits mid-rear and is best finished at the chassis stage before the surrounding covers go on. A display plaque is included, so the model can go straight onto its stand. The 5/5 difficulty comes mostly from dense pin connections and panel alignment, and the yellow parts show fingerprints, so keep a soft cloth nearby. It suits builders who have already done large Technic cars and want a high part count with a complex wing, and McLaren fans after a static display piece.