Valtteri Bottas believes Alfa Romeo must "aim for better" this year in Formula One, as the team look to put a disappointing 2022 season behind them.

The former Mercedes driver made the move to the Italian constructor last year after several successful years in the sport, but struggled to deliver on the track.

Though he picked up a number of sturdy finishes, the Finn failed to notch a podium and finished 10th overall, while team-mate Zhou Guanyu came home in 18th.

Speaking at the launch of their new C43 car, though, Bottas is looking to build on a sixth-place constructors' championship finish last term in his sophomore season with the team.

"We need to achieve more, it's simple as that," he said.

"We always need to aim for better, aim for higher, the whole team, and myself included.

"We always need to keep improving, that's what drives us, so, [we are] expecting better consistency, more points, better results. How to get there, that’s the tricky bit."

After several years near the top of the sport with Mercedes, Bottas acknowledged Alfa Romeo presented a different set of challenges

"It's definitely been interesting," he added. "In this team, I feel like my role has been very different to what I've ever had, really, in Formula One.

"It's a really open situation in the team and I love to know always as much as I can.

"The development of the car balance throughout the whole of last year has gone into the right direction.

"That work continues, and we'll see with this new car. I think hopefully everything is in an even better place in those situations, and we [will] keep working hard."