Your one-stop destination for driver reaction to the final day of testing in Southern Spain...
The men in the driving seat share their views
Here's what the drivers had to say after the final day of the first test
Red Bull Sebastian Vettel: "I'm happy with the progress we've made, I think we managed to get a lot done. Of course, this morning was a bit of a setback but these things happen. Something like this is simply part of testing, this is the reason why we are here. Of course we would like to get more laps done, but that can't be changed now. So we go back to the factory, look at everything we have learned from this week and prepare for the next test in Barcelona, where I'm looking forward to putting some more miles on the car."
Ferrari's Fernando Alonso: "We learned a lot about the difference of the car, it's been a learning test for us, a lot of constant speeds for us to do the aerodynamical and mechanical tests. Overall, it has been a positive four days for us and understanding the car. But obviously with a completely new concept and a completely new design there is a lot of room for improvement for us and that's what we need to focus on in the next couple of tests."
Force India's Nico Hulkenberg: "A busy first day in the car and good to get so many laps under my belt. It was my first time in the new car so I concentrated on getting comfortable and up to speed. The long runs were useful for that and it also allowed me to start understanding the new tyres. There is still a massive amount to learn and lots of data to look at, but it feels like we have a good baseline to develop from and I'm pleased with how the day went."
Lotus' Romain Grosjean: "Everything is feeling good. This morning we tried a number of different things on the car, including my first run on the soft tyre. In the afternoon we tried longer runs. Once it warmed up, the track temperature was hotter than yesterday which helps our understanding of the E20 in different conditions. It's strange to think that we are already a third of the way through pre-season testing. We are pushing to get as much achieved as possible. I'm really enjoying being in the car even though it is hard work. So far my fitness has been good, my neck's not too bad, but we'll see how it feels tomorrow! I think everyone will benefit from next week away from the circuit so we can reflect on the data then go to Barcelona with some new parts for the car. I can't wait."
Williams' Bruno Senna: It's been another productive day with us testing a number of different set-up directions and finding out a lot more about the car. The car has continued to show good reliability as we completed 124 laps today, which is very satisfying. I'm happy to have started my first two days in the car for Williams on a very good note.
Sauber's Kamui Kobayashi: "If I look at the whole picture I am happy with the first test. For sure we have found the right direction to go in. The car didn't surprise us with any big issues, which allowed us to work on improvements straight away. We lost track time due to small problems and I want to thank the mechanics for all their work. Today especially they did a great job to get me out on track again. In the end I did 76 laps today which isn't too bad. We have some ideas of what our next steps will be and I'm very much looking forward to the Barcelona tests."
Torro Rosso's Jean-Eric Vergne: "A good second day for me as we worked through everything on our work plan and completed a lot of kilometres. After making some adjustments, I feel more comfortable in the car and I can also get an understanding of the effect of the set-up changes that we tried and they seem to have moved us forward. A positive day, so now I'm looking forward to the second test session."
Catherham's Jarno Trulli: "My first impression of the car was that it is good - a definite progression from 2011 and a good basis for us to work on for the season ahead. Its reliability has been demonstrated all week here in Jerez and we have generated a lot of data, particularly on KERS and the 2012 tyres which will help us improve setups for the next couple of tests.
"We know there's a lot more to come in pure pace - perhaps we were the only team to run without dropping the fuel but we wanted to focus on running through the development program and making sure we completed the plan each day.
"For me there are a couple of real positives from today. I hadn't used KERS before, and despite the extra buttons it means on the wheel, it's pretty simple to get used to it quickly and I think we'll see the benefits of that more and more as we keep learning how to get the most out of it. Also, for me the car felt balanced pretty much straight away. The power steering is good - we can keep fine tuning it, but I think it's basically a good package with a lot of potential for us to work on. A good way to start the season."
