Kimi Raikkonen has no complaints with Ferrari's KERS despite the Italian outfit stating they are behind schedule with the device.

This year's championship sees the introduction of the Kinetic Energy Recovery System (KERS) into Formula One. However, some teams are not too happy with the idea.

While Ferrari and Williams have both already revealed they may not use it at the start of the season, Renault have slammed the use of the device as a 'terrible mistake.'

Raikkonen, though, says he no complaints with KERS after testing it for the first time at Mugello earlier this week.

"Both days the use of KERS had positive results," the Finn told the Gazzetta dello Sport. "The system works well like every other new component."

But despite being satisfied with Ferrari's progress, Raikkonen does not believe KERS will have as big an impact as the powers-that-be had hoped.

"You have more power but for such a short time that I think it won't change things much," he added. "Maybe it's an interesting invention, but I don't think it's decisive."

[via sky-sports]