Heikki Kovalainen says he is confident that Caterham will be able to take steps forwards during the 2014 F1 season, when fresh engine regulations seem set to shake up the established order.

The Leafield-based team has so far failed to take the anticipated steps forward towards the midfield, and is currently embroiled in a battle with Marussia to try and avoid finishing bottom of the championship standings this season.

Although he is no longer in a race seat with the team, Kovalainen has continued to work with the Renault-powered outfit and has taken part in a number of Friday practice sessions, and the Finn said he felt there were signs of improvement heading into the new season.

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"Everything is progressing better than ever before, but whether it's good enough or not is hard to say," he told ESPN. "With so many changes coming up you don't really know what other people are targeting. So we know that we're going to make a car that is quicker than this car but the question is are the top guys also going to make a car as quick as they have now or are they going to have to drop a little bit of performance because of the regulation changes?

"This is what we don't know, so that determines the gap that we're going to have next year and whether we can catch that up or not. So I'm quite happy so far with what I see how the team is performing."

Kovalainen added that he felt there was room for improvement 'in all areas' as Caterham seeks to improve performance but insisted that the team was going into the right direction.

"We're still a small team but we are working better and improving every area as I think we should do," he said. "I don't think there is any area which is particularly weak, but all the areas could be better I guess.

"It's people and it's the facilities are improving. The tools that we have at the factory means we can do more stuff in-house and everything is just growing so it's getting better."