The Swiss team has been bringing new parts to the track on a regular basis at recent races, but the Silverstone update is seen as particularly valuable as it is aimed at improving the performance of the C43 in fast corners, an area where the car has been lacking.
Bottas says that previous upgrades have already had a positive impact, but that has to some degree been disguised by disappointing qualifying sessions in tricky wet conditions in both Spain and Canada.
“I think performance-wise we just haven't had normal conditions for a while,” he said. “We had rain in Barcelona, rain in Montreal, so there's more variability. So with these new upgrades, we haven't really seen how the quali performance is in a normal condition.”
Regarding the last event in Canada, he said: “All the way until qualifying the performance was quite OK, every session I was in top 10. So I think it's encouraging.
“We obviously still have the same car here. But then we have another upgrade for Silverstone. So yeah, I'm really hoping for a dry weekend here to see where we are and get standard conditions and so on. I think at least it's looking a bit more promising now than for example before Monaco.”
Source: Autosport