Kimi Raikkonen was happy with the way his Ferrari responded to changes as he enjoyed a competitive Friday of practice at Interlagos.

Having been plagued by front end issues throughout the season, Raikkonen made progress from FP1 to FP2 and ended up third fastest in the second session behind the two Mercedes cars. Although he had a few off-track excursions, Raikkonen said the signs were encouraging ahead of Sunday's Brazilian Grand Prix.

"This was a better Friday than past ones and thanks to the work we did on the car, we got a good response from the changes we made in both sessions," Raikkonen said. "In the first session we concentrated on set-up work and aerodynamic measurements. Because of my usual problems with the front end, we tried to eliminate anything that might have been causing them.

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"In the afternoon, on the Soft tyres, the lap times were good and I'm sure that, without traffic, I could have done even better. Because of the red flags, we were unable to do a race simulation, but everything can change over the next days, because the weather forecast is very uncertain. In the dry, the car is going quite well, but we know that, if it rains, the track conditions could change things around."

Ferrari's engineering director, Pat Fry, said Raikkonen's pace in FP2 proved how much the car has been holding him back when he isn't comfortable with it.

"We've been trying different set-up options with Kimi and he seems happier," Fry said. "We've been reviewing... it's been a constant battle for us to try and work out and give him the front end he wants in the car. We're a little bit closer and it shows that, if we can give him the car that gives him the right feedback, he's right there and right on the pace."