Ground Effect wrote: ↑14 May 2018, 15:43
According to Fernando, they work as expected, how much of a step forward is another argument. Further steps forward will come hopefully with these coming upgrades, they're not sitting still. Hopefully, they'll work as well.
I think we will only truly get an idea of how much the package has improved performance in the coming races. The pole position time improved by 3.91% compared to last year at Spain. This is unlike other tracks this year:
Pole position improvement in 2018 vs 2017
Australia -1.18%
Bahrain -0.92%
China -0.64%
Baku +0.89%
Spain -3.91%
Baku was slower than last year. We know that the McLaren package was an average of 2.5% slower than P1 in the previous races, and at Spain they have closed that gap to 1.99%:
McLaren gap to Pole position in 2018
Australia +2.91%
Bahrain +2.50%
China +2.29%
Baku +2.42%
Spain +1.99%
Given how difficult it was with the tyres, and how much they will have learned about the car during the weekend and the tests to follow, I think they will find more time. So, Mercedes have improved by 3.91% vs their 2017 time, Ferrari by 3.79% and RB improved 3.76%. McLaren improved 4.1%, and that is a net 0.3% catching up to the front runners.
It isn't a huge leap forward, but I think the relative improvement will show to be bigger in the following races as the front of the field won't move as much forward as Spain with the special tyres and new asphalt.