Kimi Raikkonen was left frustrated at lost track time as a technical problem prevented him running during FP1 for the Chinese Grand Prix.

Having completed an installation lap, Raikkonen remained in the garage for the rest of the first practice session due to what the team only described as a technical problem. Although his afternoon went more smoothly, Raikkonen said he was having to play catch-up compared to team-mate Fernando Alonso.

"It was a difficult day, that began with a technical problem in the morning session, which meant I only did an installation lap," Raikkonen said. "Once that was sorted out, in the afternoon, we tried to make up for lost time, concentrating mainly on getting the set-up suited to this track, sacrificing some of our race simulation.

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"It's difficult to give an overall assessment and I definitely missed out a bit because of the lack of track time. This evening we will concentrate on analysing the data we have gathered and tomorrow, we will try and make the very most of the final free practice session to get the car as well prepared as possible for qualifying and the race."

Director of engineering Pat Fry said there had been clear progress in the second session with both cars but was wary of expecting too much from the rest of the weekend.

"In the first session, Kimi's car stayed in the garage throughout the session after completing his installation lap," Fry said. "With Fernando we managed to complete several aerodynamic tests and carry out some checks on the power unit. The afternoon ran more smoothly and with both cars we worked on balance and power delivery. Even if we are making progress on all fronts, we are well aware that it's always hard to know where you stand on a Friday."