McLaren P1 #42172 worth

Based on the information provided, I can only give you a general assessment since the specific details for the McLaren P1 #42172 LEGO Technic Set are not fully available in the catalog for a detailed breakdown.

The catalog shows the McLaren P1 #42172 — LEGO Technic Set Value (LEGO Technic) has a used value of $346.39. The second item, LEGO McLaren P1 (42172-1) (Technic), is listed as unpriced in the current view.

For the most accurate picture, you should compare the sold comps against the current asking prices visible on the page to see if the item is priced fairly for its condition.