It was an overcast and cool day in Shanghai as Sahara Force India completed its Friday practice programme ahead of Sunday's Chinese Grand Prix.

Nico Hulkenberg: "It was quite a smooth day in terms of completing our programme and working through the job list. There is still work to do on the set-up and some things we can try to optimise the car ahead of tomorrow, but on the whole I'm satisfied with what we learnt today. The tyre work went okay and we have all the data that we need on the soft and the medium tyres to prepare for the rest of the weekend."

Sergio Perez: "I had an issue with the DRS this morning, but the afternoon was much better and we completed our lap target. The tyre work went to plan and, as we expected, the degradation was high on the soft tyre. I'm still not completely happy with the balance so there are some areas to work on overnight."

Robert Fernley, Deputy Team Principal: "It's been a fairly normal Friday for us with both cars getting through their respective programmes. Sergio lost some track time with a DRS issue this morning, but the afternoon was much more straightforward. There are a few aero developments on the car this weekend, which we ran during the Bahrain test, and we continued to evaluate them here. It's difficult to judge our competitiveness based on today's performance, but it's fair to say that we have some work to do this evening to optimise things. There's also a good chance of rain tomorrow, which could impact on qualifying and make things interesting."

Check out our Friday gallery, here.