After Verstappen had produced a powerful lap in remaining apply earlier than it was deleted for monitor limits, Crimson Bull found there was a visual crack in his rear wing.
The group elected to make repairs to it to beef it up earlier than qualifying, in addition to strengthening the wing on team-mate Sergio Perez’s automotive as an additional precaution.
However with no particular reply as to what brought about the issue, Crimson Bull will conduct additional investigations in a single day earlier than deciding if the wing shall be okay for the race.
“There’s at all times one thing occurring,” Horner informed Sky Sports activities F1. “There’s by no means a stress-free session.
“I do not know whether or not Max hit one thing, as [there was] fairly a crack, and nothing on the opposite automotive or any of the opposite wings.
“We received permission simply to beef it up a bit on each vehicles, so we’ll have a better have a look at it tonight.”
Regardless of the considerations in regards to the rear wing, each Verstappen and Perez have been in a position to produce robust qualifying classes because the saved title rival Lewis Hamilton at bay.
Max Verstappen, Crimson Bull Racing RB16B
Picture by: Steven Tee / Motorsport Images
And with Mercedes having not been in a position to construct on the pace-setting kind it confirmed in opening apply, Horner says Crimson Bull had managed to make good beneficial properties.
“Yesterday the set-up we arrived on the monitor with was a bit of bit out, however I feel we simply tuned the automotive in,” he defined.
“We have managed to enhance the traction and we have managed to enhance the automotive a bit over the bumps. The drivers are undoubtedly… you possibly can see their confidence has simply grown and grown. In order that was a giant issue.
“And I feel significantly on the mediums, we have been debating at one level, would the medium be the higher tyre for Q3?”
Mercedes reckoned that the story of the weekend to date was that Crimson Bull had certainly made good progress with its pace, whereas the world champion outfit had just about stood nonetheless.
Chief technical officer James Allison stated: “After FP1, FP2 was a bit extra of a wrestle and it has been a bit of bit that means since. We have been up on the sharp finish, however not likely with the sting that we have seen within the latest races, so not straightforward.”
Requested if it was extra Mercedes had misplaced pace or Crimson Bull had gained, Allison stated: “In all probability a bit of bit of every. Keep in mind we’re operating in qualifying very comparable set-ups to the place we began in FP1, having migrated a bit in between time after which come again. So I feel most likely it is a bit extra of Crimson Bull having a stronger weekend of growth than we did.”