On top of all the above reasons, you simply have slightly different tack temps at a given point, different engine capacity/life left and many other things going on.Sevach wrote:And neither Hamilton nor Rosberg made particularly good bankers.Blaze1 wrote:Also Kvyat's accident put paid to a few second runs in Q3.
This year had a much more tactical engine usage, Merc do Barcelona on the same engine they started the season with, deciding to take a huge distance on the first engine to let the second engine be the upgraded one. In my mind Merc saw what an advantage they had after Australia, got a full weekend of data from all the teams and at that point decided they could turn down the engines on all teams and stretch to Canada on the one engine.
In terms of race distances, some races just have a situation where the gap is so big you stop pushing. Was it barcelona Hamilton got stuck behind Vettel, meaning rather than two Merc's pushing each other start to finish, Vettel held up one Merc, Rosberg didn't have to push and a slower race time would be expected.
Multiple races had faster qualifying and race pace, direct comparisons using one or two races to decide a whole season wasn't faster (or was faster) just isn't possible as there are far too many factors in play.