ESPNF1 Columnist

January 28, 2013: Lotus technical director James Allison explained that weight is the reason the team has not covered up the stepped nose on the E21

January 28, 2013: Kimi Raikkonen is confident that the new Lotus E21 will allow him to challenge for the 2013 world championship

January 28, 2013: Lotus has become the first team to unveil its 2013 car as it launhced the E21 at its factory in Enstone

January 28, 2013: Susie Wolff will continue as Williams' development driver, and will be the first to get behind the wheel of the new FW35

January 28, 2013: The future of the German Grand Prix has been put in to more doubt after Bernie Ecclestone ended negotiations with the Nurburgring circuit

January 28, 2013: Sergio Perez believes his pairing with Jenson Button should help McLaren get the most out of the 2013 Pirelli tyres

January 28, 2013: Timo Glock has cited Marussia's failure to secure 10th place in the 2012 constructors' championship as the reason he had to leave the team

January 28, 2013: Marussia sporting director Graeme Lowdon says the departure of Timo Glock is the type of decision that is required to safeguard the team's future

January 26, 2013: Timo Glock is confident he can win the DTM when he makes a switch to the German touring car championship next year

January 26, 2013: Bernie Ecclestone has claimed Formula One can get by without the contract which has been at the heart of the sport for over 30 years and commits all the teams to race

January 25, 2013: Portugal's Algarve circuit is the latest venue to show an interest in occupying the vacant European race slot on the F1 calendar

January 25, 2013: Ex-Marussia F1 driver Timo Glock will race in the DTM series for BMW this season after completing a test in one of its M3s on Thursday

January 25, 2013: Lewis Hamilton has again played down expectations ahead of his first season with Mercedes, saying he will have a better opportunity to fight for the title in 2014 when the engine regulations are overhauled

January 24, 2013: Robert Kubica has completed his Mercedes DTM test at Valencia's Circuit Ricardo Tormo, logging 114 laps with "no problems whatsoever in the car"

January 24, 2013: Fernando Alonso will not take part in the first week of winter testing at Jerez in early February, leaving the initial work on the 2013 Ferrari to Felipe Massa and test driver Pedro de la Rosa

January 24, 2013: Lewis Hamilton visited the Mercedes factory in Brackley on Thursday and gave his first interviews to the British media

January 24, 2013: Lewis Hamilton believes it is important to have Ross Brawn as the leading figure at Mercedes as he embarks on his first year with the team

January 24, 2013: Ross Brawn has made clear that he is still in charge of the Mercedes F1 team amid speculation that he could be replaced by McLaren's technical director Paddy Lowe

January 24, 2013: Robert Kubica believes he can make a return to Formula One and is confident that if he does he will be on the pace