Boyko23:
Acording to todays Autocar performance test of the P1, it is much slower than expected and disaster on wet track.

If we compare their data with Motor Trends one for the non WS 918 pack, Porsche is faster on:
0-60 mph,
0-100 mph,
1/4 mile.

McLaren world is a little nervous today...:-)

Uh, you sure about that? Faster car they ever tested on the track, besting the radical even with what they say had damp patches. Doesn't sound like a disaster to me.

http://www.autocar.co.uk/car-news/mclaren-p1/autocar-road-tests-mclaren-p1

"The most impressive things about the McLaren P1 are not its outright pace – although that is breathtaking – but that such a usable, pliant and enjoyable road car can have such duality of character. And that a car so fast can be so approachable and engaging on a track."

MT did 4.7 0-100 mph in the P1 and 9.8 @ 149mph in track mode, which is probably slower being that it has more downforce.

You need to have all 3 cars together on the same day in the same place with ideal conditions to really know how they compare.