Robert Kubica a passenger while driving Williams' 2019 F1 car

Robert Kubica says he feels like a passenger and is primarily aiming not to spin while driving Williams’ FW42, such is the imbalanced nature of the team’s 2019 Formula 1 car.

Williams has struggled for performance with its ill-handling FW42 this year and has finished substantially off the pace in both Australia and Bahrain.

Kubica revealed in Bahrain that the team’s two cars are producing different aero results while running the same set-up, and it has yet to fully understand the cause of the discrepancy.

Kubica finished a twice-lapped 16th in Bahrain, one spot behind team-mate George Russell, and was again anguished by the feel of the FW42.

“In Australia by running over one kerb where everyone took it I lost bits of the car which then we didn’t have them,” he said.

“In Bahrain I stayed out of the kerbs, the time in quali I used them another bit flew away.

“And then in the race actually I realised I’m not using them [the kerbs], or using them only because I was brought [to] them, but I don’t use them as a track.

“And this is also you know if you start tightening more corners you put more load on the tyres, it’s a complicated situation.

“There will be a point hopefully one day where all these limitations, or at least I can forget about it, and the car will be more solid and we’ll stay more together and it will become more fun as well.

“Until now it’s like I have to make sure I turn into the corner and not spin. And then this is my driving. Everything focused on this.

“It’s difficult to say it’s fun, it’s at least experience, and those two races gave me good answers and valuable experience definitely.

“There were some positives in Australia, there were some positives in Bahrain.

“But as I said we need to find out what’s going on as I have no margin and no window where actually the car, I can drive it, I am a passenger.”