Very interesting nose!
That will improve downforce by a hefty amount of points, looking at the amount of (horizontal) surface on it, and the clever way of using 'ducting' surely will heavily improve flow all the way to the back too, which will further improve the car's aerodynamics. Also looking at the as it seems improved bodywork (slimmed down) there's more area to use for aerodynamic purposes - seems like the renault engine needs less cooling, or at the very least, Mclaren now dares to slim down as they trust it won't have similar overheating issues as in testing.
i wouldn't be surprised that the engine updates from Renault after the testing, AND the improved fuels that will bring more power will have much benefits for the overall package.
Pretty good amount of updates there, AND the mirrors are still the same as before, i'm wondering/expecting really that there will be change there too, a-la Ferrari.
This car might develop into something very interesting during the season. Very curious to see what it will actually do on track.
Very positive vibes right now, about time