Truth be told, I don't really care if McLaren decided to play around with how they count the production numbers on the P1. This could be in fact be the same car that Top Gear featured recently in their giganto everything-British test. This silver P1 could have been vinyl-wrapped black for that test, and mostly unwrapped in these pictures.
What is important is we get to see a P1 in silver and without the two-tone paint on the side. Do you like it better in monotone?
(Hat tip to Mochimaster!)