I now could add/edit my previous post
Spa: the track was not empty and didn't drive the same driver...
Laguna Seca: count (918 wins)
Algarve International Circuit (Portimao): count (918 wins, because d'Ambrosio is (more) professional driver, obviously, his lap times from standing start are similar to those of Harris)
Thermal Club Raceway: count (918 wins)
Goodwood Hill climb: 918 was in electric mode
Anglesey Coastal: 918 was with the top off... and P1, u know...
Autocar Wet Handling Track: wet
Autocar Dry Handling Track: two damp patches on P1's run
Silverstone (National Circuit): count (P1 wins)
Thermal Club Raceway Long: count (918 wins)
I think I could now say that Porsche 918 is faster then McLaren P1 on track