Kubica a big asset for Renault says Boullier

Renault F1 Team Principal Eric Boullier believes that Robert Kubica has been one of the key factors in the team's early season performances. The Pole is only nine points behind Championship leader Felipe Massa thanks to a podium finish at Australia and a good result in Malaysia.

Boullier said to our colleagues at 'autosport': "Robert Kubica is very, very eager to do well and is very, very committed to the team and that is a big asset that is difficult to evaluate.

"What I have seen every day since the beginning of testing and even before is Robert every time really sticking to the engineers. He is very, very demanding - and the good thing is that when a driver is very demanding and then does some good races like he has done in the first three races with no mistakes and very good pace, then the team is really respectful of what he is doing and the team delivers more."