ESPNF1 Columnist

February 7, 2013: Esteban Gutierrez believes Sauber has made good progress with the level of downforce on its new car this year

February 7, 2013: Valtteri Bottas said some of the new parts being tested on the Williams FW34 on day three of the first test have been "positive"

February 7, 2013: Kimi Raikkonen believes Lotus has a good starting point with the E21 but refused to get too excited about it after just 40 laps on his first day

February 7, 2013: Max Chilton said Marussia was pleasantly surprised by the MR02's potential after some performance runs on day three at Jerez

February 7, 2013: Nico Rosberg said his monster test day in the new Mercedes on Thursday has made up for some of the lost time caused by reliability issues on the first two days at Jerez

February 7, 2013: Felipe Massa said "there are a lot of very, very quick cars" after setting the fastest time of day three at Jerez

February 7, 2013: Sebastian Vettel says he expects the 2013 season to be "at least as tight as last year" after his first day in the RB9 at pre-season testing

February 7, 2013: Force India's James Rossiter has apologised after driving in to a mechanic, who did not sustain any serious injuries, during a pit stop at testing in Jerez

February 7, 2013: Felipe Massa set the pace on the third day of testing at Jerez as Ferrari let loose with its F138 for the first time this week

February 7, 2013: McLaren boss Martin Whitmarsh has warned that Formula One needs to stop its infighting over issues such as the Concorde Agreement and the introduction of a new engine formula if it is to attract new sponsors and car manufacturers over the coming years

February 7, 2013: Lotus is confident it will receive the same treatment as all the other teams supplied with Renault engines next year