Kimi Raikkonen says put simply Ferrari is lacking grip and power to catch its rivals in 2017 but placed questions on whether improvements can be 'good enough' to become F1 world title contenders.
The Ferrari driver feels the Italian manufacturer has continued to lack outright acceleration and top-end speed to its Mercedes rivals while also missing out on grip levels to close the performance deficit to both Mercedes and Red Bull.
After a solid start to 2016, with nine podium finishes in the opening nine races between Raikkonen and team-mate Sebastian Vettel, Ferrari has struggled to match the development rate of Mercedes and Red Bull to see it slip back to third in the F1 constructors' championship and take just one podium in the last 10 races.
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Raikkonen feels Ferrari can potentially make up for lost ground in 2017 but underlined it won't know it the improvements will be enough to challenge Mercedes and Red Bull until the new season.
“We have been trying to improve them all year and to put it simply we need more grip and more power to go faster,” Raikkonen said. “It sounds very simple but it is not unfortunately and I think we have understood a lot of things lately and we have great people to work and I have a lot of trust that we will fix those issues for next year.
“There is no guarantee where we are going to be but what we have done this year is understand things.
“We can be quite confident that we will be good. Good enough? That is a different matter but that is it simply.”
Raikkonen is hunting his first rostrum result since the Austrian Grand Prix in June and sits just one point above Red Bull's Max Verstappen in the F1 drivers' championship in fifth.
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