- Why was there so much blistering on the rear left tyres?
JA: "Well, lots of teams suffered blistering on race day in Austria. It was quite a warm day and it is also a track that has some very demanding corners. Very, very fast series of flowing corners around the last part of the lap, that puts a very high thermal burden on those tyres.
"Why did some cars suffer the blistering and others didn't? Well, it really depends on how hard you want to lean on your car. If you look at the qualifying pace around about for our car 1m3s, and then look at the racing pace, somewhere around about 1m9s at the start of the race.
"The difference between those two figures is way, way more than the additional fuel that gets added between qualifying and racing. And the difference between those figures is largely explained by the drivers looking after their tyres.
"Making sure they are not asking too much of them. Because, on any given lap the car could go way faster than they are driving in the race, way faster. But they will then pay a penalty for that because the tyre will then get too hot, once it gets too hot a blister will occur and then that tyre is damaged in a way that will hurt the rest of your race.
"So, the drivers have to drive below the limit of what the car can give and what the tyres can give on any given lap, in order to make them last a stint. In our particular car, having lost out as a result of bad decisions we made around the Virtual Safety Car, we were trying to recover our race from that point of view.
"A first stint where we saw absolutely no difficulties with the tyre because we were able to run it in a controlled and relaxed way quicker than all the others then became a real catch-up job, where we are trying to lean on the car to get places back.
"Leaning on the car in that fashion pushes the tyres over that cliff edge where the blistering happens. So, it is really just a question of how much you ask of the tyres that determines whether or not the blistering happens, on a track like this where the weather is hot and there is this series of very demanding curves, that put a lot of thermal energy into the tyres."