Sahara Force India completed a busy day of practice for the Korean Grand Prix with Adrian Sutil, Paul Di Resta and James Calado all behind the wheel of the VJM06.

Adrian Sutil: "I really like this circuit and the conditions were ideal today for practice. We worked hard to find the ideal balance and in the morning there was more understeer, while in the afternoon there was more oversteer. So there is some work to do to this evening, but we seem to be in a good position for the weekend."

Paul Di Resta: "It was quite a successful session and right from the first run I felt in the groove with the car. The long run pace looks promising and our tyre wear seems comparable to our rivals, which is a good sign. The area we need to improve is our one-lap pace so we will work hard tonight and hopefully find some gains ahead of final practice."

James Calado: "A new track for me and it proved to be quite difficult to learn, especially the last sector, which is quite a challenge with some off-camber corners. The programme involved some high fuel running, which is the first time I've done that, and by the end of the session I was feeling very comfortable with the car. The degradation of the tyres was quite high, especially as the track was so green to begin with, but I'm pretty happy with how things went today."

Robert Fernley, Deputy Team Principal: "Another straightforward Friday for us. Adrian and James were in the cars this morning and they delivered their respective programmes as required. In the afternoon we got a better indication of our speed and were encouraged by the long run pace with both cars. With over 100 laps under our belt we have all the data to further optimise the cars tonight. The main focus is to try and find a more neutral balance with the car with a view to better optimising our one-lap pace."

Check out our Friday gallery, here.