Today, YouTuber NM2255 uploaded a video of a McLaren P1 customized by MSO tearing up a track. The most notable MSO options that you can see on the car are the unique paint color and red accents.
The video features some great engine sounds from the P1 as it starts up, revs and performs some fly bys. Also, there is a clip of the P1's rear active wing in action. Check it out for yourself above.
(Source: NM2255 / YouTube)