When reading people saying McLaren/Honda can´t improve enough this winter to fight Ferrari I always wonder if they realiced Honda has had tied hands this season with the problems they know since pre-season. It´s been a manufacturer nighmare, make a huge mistake and be forced to live with it the whole season
Finding 1 second or more in winter has always been almost imposible, right, but how many seasons we´ve seen with frozen/limited areas of the car that they can´t develop during the season but they can in winter? 2014-15 for example, and Ferrari found more than a full second. And their problems were absurd compared to those Honda is suffering, so McHonda can improve a lot more than a second
This said, they need to improve at least 2 seconds to fight Ferrari (add to that Ferrari improvement for 2016) so it´s not going to be easy at all. But doable I think.