"We are committed to F1 for many years and we certainly won't leave while we're not winning," Ghosn told Gazzetta dello Sport.

"The fruits of our work on the way to recovery will be seen in the second part of the season. It's clear that I'm not happy with the results.

Ghosn also backed Alonso to stay with Renault on the long-term.

"Fernando is very important, he's given motivation and argumentations to the team, and he is a fighter and an honest person. It's up to us to give him a good car. I'm confident he'll stay with us," he added.

"No marriage resists in F1 with a lack of results. Everyone in the team knows we must do more."