Brazilian GP: Toro Rosso Friday quotes

Jean-Eric Vergne - 17th/18th: "I don't have much to say as we seemed to struggle a lot today to get the car working properly. That was mainly linked to the high temperature which did not suit us and made life hard for the tyres. We will have to work very hard tonight to come up with ways of improving the car for qualifying, even if we expect Sunday's race to be a wet one. Rain would definitely suit us better. We had some 2013 tyres to try and we had some sensors fitted this morning to see what they did. It's interesting to see for next year as the shape of the tyre is slightly different which will have an impact on the aero."

Laurent Mekies (Chief Engineer): "Quite a tough day for us, which was not unexpected as we know we find things a bit more difficult when the conditions are as hot as this - the track temperature reached 54 degrees today - and this year we have always suffered a little bit more than our competitors in these conditions. On the plus side, it has been a trouble free day, during which we tried various changes to try and find the right set up. Even though it is meant to stay hot tomorrow, I feel we can improve the car and then we are expecting a wet Sunday anyway. It was interesting to have both drivers run the 2013 tyres that Pirelli supplied to all the teams here. We got some useful data for next year, therefore it was important to invest some of our track time in this exercise in both sessions."