Force India are one of the last teams to unveil their 2009 car after sealing a new engine deal with Mercedes

The team failed to win a single point in 2008 but first impressions of the VJM02 suggest it could be a different story this year

Red Bull drivers Sebastian Vettel and Mark Webber lift the covers on the RB5 at the Jerez circuit in Spain in early February

Adrian Newey's (second from left) eagerly-anticipated design features a very low top to the chassis in front of the cockpit

With Webber recovering from a broken leg, Vettel is left to take the new car for a spin, showing off its longer rear-wing endplates

BMW Sauber unveil the F1.09 in Valencia on 20 January. It features a much higher and wider nose and considerably slimmer rear wing

BMW's Polish driver Robert Kubica takes the F1.09 for its first drive as the sunlight bounces off the Valencia testing circuit

Fernando Alonso (left) and Nelson Piquet, with team boss Flavio Briatore (centre), unveil Renault's R29 in Portugal on 19 January

Piquet Jr retains his drive with Renault for a second season, while team-mate Alonso will aim for a third drivers' championship

Resembling something like a duck in a rainy pond, the skies open as Piquet Jr puts the new R29 through its paces in a short test session

The Williams FW31, in dark blue winter testing livery, gets the quietest of debuts outside the Williams garage in Portugal

Test driver Nico Hulkenberg gives the FW31 its first outing, showing off the team's response to new aerodynamics regulations

World champion Lewis Hamilton is all smiles as McLaren launch their car for the new season at their Woking base

McLaren's new car - the MP4-24 - conforms to the biggest set of rule changes in the sport in 25 years

Toyota F1's test driver Kamui Kobayashi gives the TF109 its first airing at the Portimao track on 18 January

Toyota expect the TF109 to earn its first race win after finishing a disappointing fifth in the 2008 constructors' championship

Ferrari are first to launch their 2009 car with boss Stefano Domenicali (centre) on hand alongside Felipe Massa and Kimi Raikkonen

The F60 conforms to 2009's rules, which include aerodynamic tweaks, slick tyres and an optional kinetic energy recovery system

The front wing must be lower, wider and include an adjustable flap to aid overtaking so Ferrari's technical director Aldo Costa focused on the wing's side elements

The new-look Ferrari has a sculpted and compact rear end, which houses the Kers system in the back of the chassis