ESPN rounds up all the reaction after the second and final day of testing at the Red Bull Ring in Austria.
Mercedes
Nico Rosberg: "Monday and Tuesday were two long days waiting for better weather, so today was important as there are only four test days during the season now. Luckily, the track was consistent and we could try a lot of different things. We had a gearbox issue just before lunch but luckily it didn't really cost us any time as we could work on it during the break and the guys did a great job to get me back out there so quick, so thank you to them for that. It was an intense programme but we got through everything and learned a lot.
"We started with was some aero work then spent time looking at tyres and a few mechanical things like spring settings. We also ran a stiff setup in preparation for Silverstone, which will be useful for next week. The car felt good with that so I'm sure we will be strong at the next race. It's a very fast track and you have to drive it very hard. But that sort of content - high-speed corners needing good downforce - is a specialty of this car, so I'm feeling confident."
Red Bull
Daniel Ricciardo: "We did a lot of laps today and that included a pretty big break over lunch to make some car changes, so to get in more than 100 laps was very good," said Daniel. "We learned a few things and we tested a lot of stuff. We had a big aero rake on the car this morning that looked like something out of 'The Terminator' but it's all good information for the aero guys and will help going forward.
"We had a small problem at the end with the brakes but it wasn't a major issue and we were able to get out again for one last run. I'm looking forward to Silverstone now - there are a few more corners and less straights in Silverstone [than here in Austria], so I think it should suit our car a bit better. We have some updates coming to Silverstone as well, so I hope we can take the fight to our immediate rivals."
Guillaume Rocquelin, Head of Race Engineering: "It was a pretty successful test. Day one was obviously compromised a bit by the weather but once the conditions improved we put in 80 laps in a four-hour period with no dramas. With Pierre Gasly in the car, day one was more data-driven, running a lot of background tests and the result was good. Pierre is excellent. His feedback is great, he is able slot in and do comparable lap times to the race drivers and he delivers exactly what you want.
"Today, with Daniel, there was lot of aero research and development, so we were running a lot of arrays and again we gathered a lot of valuable information. We had a small delay after lunch but that was planned, as we were making some changes to the car that took some time. We also had a stoppage towards the end of running but it was more spectacular than it looked and Daniel was able to go out again. Part of the aim today was to take what we had at the weekend, which was a pretty strong race for Daniel, and answer a couple of questions we had during the race. We were able to do that and we'll go away from Austria satisfied that we've put in a couple of very productive days' work."
Williams
Valtteri Bottas: It was a good day overall and luckily the weather was kinder to us. The work Susie did yesterday was really important as we continued our programme. We focused on aero and mechanical work, and now have a clearer idea where we need to push in terms of development. I now have to switch my focus to Silverstone, which I am really looking forward to.
Rod Nelson, Chief Test & Support Engineer:We have had an excellent day today to complete the two-day test. We completed our scheduled programme including a number of additional items on top, which is really positive. We have a lot of data to go through now and have a clear direction in terms of development. It was great to have Susie back in the car yesterday, and Valtteri has built on that progress today.
Ferrari
Esteban Gutiérrez: "Today's testing focused mainly on studying the behaviour of the various Pirelli compounds, as well as looking at some aerodynamic solutions. It's always nice to be able to drive the current Formula One car and I want to thank the team for giving me this opportunity. It was a positive day, we did a good job and we completed the programme we had set ourselves, gathering plenty of data that we can now carefully analyse back in Maranello".
McLaren
Fernando Alonso "Today was a positive day. The most important thing was to put some laps on the car after the problems we've had in the last couple of races. We managed to complete more than 100 laps, and, together with Stoffel's laps yesterday, I think we finished the test with some good information. Now, we need to go back to the factory and analyse everything, but we definitely have a lot of data to go forward with. I'm pretty happy with how the test has gone."
Dave Redding, McLaren-Honda Team manager
"Our aim after yesterday's test was to continue the positive momentum into today, and we have definitely managed that. The morning session began with data and system set-up checks followed by aero correlation tests, which included fitting the new shorter nose. The afternoon session was dedicated to further aero testing of a range of new bodywork components, tyre assessment, and further power unit functionality tests.
"Overall, we were able to make the most of the good weather and dry track conditions to complete solid sections of the test programme to our satisfaction. Both days of the test have been productive - and most importantly, reliable - and we are now armed with lots of valuable data and useful feedback from both drivers, that we can take away and analyse in preparation for the next two races before the summer break."
Force India
Pascal Wehrlein: "I enjoyed today and it was great to do so many laps. The programme included evaluation of aero parts and hopefully this has given the team some useful data. It was also valuable for me to spend so much time in the car getting used to all the procedures in the cockpit - things like launch procedures and warming the tyres. It was nice to be back in a Formula One car and to work with this team again."
Tom McCullough, Chief Race Engineer: "It's been another solid day of testing with Pascal getting 132 laps under his belt. The last time Pascal drove for us was in Barcelona during the winter [in the VJM07] so this was his first experience in the VJM08. He got up-to-speed very quickly and provided excellent feedback as we worked through a very busy programme, which included further data collection and correlation for our development parts. Having missed some dry track time yesterday, we set out to achieve an ambitious test plan and managed to tick off the majority of the items. It means we leave Austria with plenty of rich data to analyse ahead of our home race at Silverstone."
Toro Rosso
Marco Wittmann: "This has been an amazing experience for me. I was surprised at the power of the car; if I compare it to DTM, it's got quite a lot more power! I enjoyed the whole day, which was trouble free, so I was able to do a lot of laps. I'm happy with my day, I hope the team is too. I would like to thank Red Bull, Scuderia Toro Rosso and BMW for giving me this great opportunity."
Phil Charles, Chief Race Engineer: "We've had a very productive day, completing a high number of laps, with Marco making no mistakes and impressing us all with his approach and feedback. There was a short time of adjustment as he got used to the difference in braking from the DTM car to a Formula 1 machine. He then settled into a rhythm, as we started off our programme with a series of long runs. After that, it was time to proceed with the items on our test agenda; aero, tyre and set-up work, with some performance runs in the middle of the day, mainly for the driver's benefit."
Lotus
Jolyon Palmer: "It was a good day for me and we completed all of our programme. It's always productive to get a good tally of laps on the board so anything over one hundred is a real bonus. It's a bit sad as that's my final day of testing in the car, but I've got a good schedule of FP1 sessions ahead of me, starting with my home Grand Prix at Silverstone next week."
Alan Permane, Trackside Operations Director: "In contrast to yesterday, today was straightforward in terms of weather and run programme. In the morning we looked at mechanical set-up work, focussing on more time consuming changes than we'd evaluate over a Grand Prix weekend, then in the afternoon we also looked at further aerodynamic assessments. The E23 ran reliably and Jolyon did a great job as expected. We've been able to collate useful data for improving the pace of the E23 which means job done. We now head back to Enstone to prepare for our home Grand Prix at Silverstone."
Sauber
Felipe Nasr: "I am quite satisfied. Today was very productive, as we went through the planned programme. We were able to go through a job list of things that could not be done during a race weekend. We completed some useful work after the lunch break, as we worked on the brakes. In the end we completed over a hundred laps. We will now analyse the large quantity of data and informations we gathered to further improve our performance."