Carlos Sainz: "It's been quite a tricky first day here in Barcelona. I think the track conditions surprised us quite a bit, as it was much slower out there today compared to winter testing; there was also a lot of wind, which complicated things even more. It wasn't easy to find the right balance, but overall I'd say we ended the day in a decent way, making some improvements and we can approach tomorrow in a positive way."

Daniil Kvyat: "The car has quite a few handling issues at the moment... We need to be patient and try to do things overnight for the car to suit me better because, at the moment, it wasn't in the correct window for my driving style."

James Key (Technical Director): "We have brought a lot of new development parts to Barcelona, both on the aero and mechanical side. There was an awful lot to learn today regarding these parts, how they were working and how best to set-up the car around them. FP1 was therefore dedicated to a lot of that work and we did a few runs on the Medium tyre as part of this to get initial balance data, which needed some work after the first runs. We made a bit of a step forward for FP2, even though there's still work to do.

"Generally, we've got a direction which is emerging now and this is allowing us to tune the car into where we think we need it to be. I'd say it's been a learning day and now there's clearly some work to do overnight to extract a little bit more out of the car. Carlos was generally happy and clear on what was going on from his side; the longer run for him looks quite promising too. Regarding Daniil, we had a few issues on the shorter runs today, where we couldn't quite get the balance together. Unfortunately he missed a part of FP2 after damaging the floor, which put his programme a bit behind schedule. However, he was happier with the long-runs and we now need to look into the shorter run performance, specifically on his car. I think we've got some good data to work with now, but there's certainly quite a bit still to find."

Check out our Friday gallery from Barcelona, here.