In its final year under the Alfa Romeo identity, the team had a disappointing season, finishing only ninth in the world championship, with Bottas logging two eighth places and his team-mate Zhou Guanyu never bettering ninth.
Having observed the process of change that the Swiss outfit is undergoing ahead of the entry of Audi in 2026, Bottas is expecting an improved performance this year under the interim fluorescent green and black identity revealed on Monday.
"Going into the third season together with a team, the objectives need to be lofty," said the Finn, a winner of 10 grands prix with Mercedes.
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"My own expectations are high, we definitely need to make a good step and see good progress from last year, a season in which, in all honesty, we didn't meet the targets that we set for ourselves.
"We need to fix that now, we need to step up our game and do better. Seeing all the changes that have been happening in the team is what gives me this confidence.
"We have got quite a bit of new resources in different departments of the team, we have a whole new identity, the new car looks different - and not just in terms of livery.
"All this gives me the confidence that we're on a different path, hopefully the right path."
Bottas says that the new C44's eye-catching colour scheme lends itself to the transition that the team is undergoing.
"I think the new look reflects the team's approach for the future," he said.
Source: Autosport