Sauber team principal Monisha Kaltenborn is sure that her squad can recover next year, with the Swiss outfit suffering from one of its worst campaigns in 2014.
Sauber has yet to score a point this year with the C33 also struggling for reliability.
Kaltenborn, though, is adamant that Sauber will not repeat its errors in 2015.
"It is in the making," she told the Official F1 website when asked about Sauber's 2015 challenger.
"Sauber has a bit of a history with always struggling when massive rule changes came into effect, but we have always been able to bounce back in the next season. Just think back to the exhaust [blown diffuser] issue: we didn’t get it right in the first year, but the following season we were right there getting a couple of podiums.
"So I am confident that whatever we learn on this year’s car, the mistakes, we will not make them on the new car."
Neither Adrian Sutil nor Esteban Gutierrez has been formally confirmed as remaining with the team into 2015 and Kaltenborn says the squad will announce its line-up before the end of the current campaign.
"We do have several options and we plan to announce our driver line-up towards the end of the season," she said. "We will not speculate with any names."