Upgrade struggles put Toro Rosso Formula 1 team behind target
Toro Rosso boss Franz Tost admits his Formula 1 team "hasn't achieved our goals" with some of its major upgrades this season and is currently "behind expectations"


The squad introduced several aero updates during the Austrian and British Grand Prix weekends, including a new front wing design.
Toro Rosso has struggled to extract the performance from the new parts it had hoped for, and the revised front wing was dropped for the races in Germany and Hungary.
Tost admitted he "expected more" from it and is concerned a failure to make gains with the updates could make it "difficult to defend" Toro Rosso's eighth position in the constructors' championship from Sauber, which is 10 points behind.
"We haven't achieved our goals with the upgrades, we expected more from it," Tost told Autosport.
"The midfield is very close, it's [covered by] hundredths of seconds. If you can't improve then it's difficult to defend the position, and currently we are behind our expectations.
"I hope for the second half of the season we can improve our performance.
"It's difficult, yes. Sauber, Haas made big steps forward, also thanks to their fantastic Ferrari power unit.
"Therefore it has become difficult for us to be within the first 10."

Pierre Gasly, who sits 13th in the points and scored the team's season-best result of fourth in Bahrain, said after the Hungarian GP that Toro Rosso is yet to "understand" its inconsistent form.
He is wary of the upcoming Belgian and Italian GPs being "tough" for Toro Rosso and Honda.
"There are still a couple of things we don't understand, why sometimes we perform a lot more than we expect and some other times we struggle a lot more than we think," Gasly said.
"Of course we know that there are tracks where we're going to perform a lot more.
"I think Spa and Monza will be quite tough for us, but Singapore is another one where we need to focus."

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