The MERCEDES AMG PETRONAS Formula One Team today unveiled its 2013 Formula One car, the F1 W04, at the Jerez circuit in southern Spain. Nico Rosberg and Lewis Hamilton arrived at the official photo call at the wheel of two Mercedes-Benz SLS AMG Coupé Black Series, the fifth Black Series model from Mercedes-AMG. Inspired by the SLS AMG GT3 race car, the new car offers a blend of breathtaking design, outstanding driving dynamics and lightweight construction in line with the "AMG Lightweight Performance" strategy. Developing 464 kW (631 hp) for a kerb weight of 1550 kg, the SLS AMG Coupé Black Series accelerates to 100 km/h in 3.6 seconds and is the most powerful internal combustion vehicle currently produced by Mercedes-Benz.

The new F1 W04 completed its first laps of today's 100 km shakedown at 10:21 CET in the hands of Nico Rosberg, who drove the car throughout the morning. Lewis Hamilton will take the wheel of a Formula One Silver Arrow for the first time this afternoon, the first British works driver since Sir Stirling Moss in 1955. The car will then complete four days of testing this week in Jerez, in the hands of Nico and Lewis.

Red Bull Racing set the defence of its Formula One Drivers’ and Constructors’ Championship titles in motion today with the launch of its 2013 car, the RB9, in Milton Keynes UK. In front of an audience of team members, partners, guests and international media, drivers Sebastian Vettel and Mark Webber drew back the sheet to reveal the RB9, the final instalment in a generation of designs that have bought Infiniti Red Bull Racing 34 grand prix victories and six World Championships.

Nine times grand prix winner Mark and triple World Champion Sebastian were joined on stage by team principal Christian Horner, chief technical officer Adrian Newey and corporate vice president global marketing communications representing Infiniti, Simon Sproule.

Caterham F1 Team has today confirmed that Giedo van der Garde, the team’s 2012 Reserve Driver, has been promoted to a full-time race seat, completing the team’s 2013 driver line-up with Charles Pic.

Giedo’s appointment to the F1 team is the natural step for the Dutch driver after he spent 2012 competing with Caterham Racing in the GP2 Series, combining his GP2 season, in which he scored six podiums and two race wins, with six FP1 outings for the F1 team.

Sahara Force India unveiled its 2013 challenger today as Paul Di Resta pulled the covers off the VJM06 at Silverstone circuit. The VJM06 is the third car to be overseen by Technical Director, Andrew Green, and builds on the strengths of the 2012 car. With stable technical rules the car is more evolution than revolution with the removal of the ‘step’ nose being the most obvious visual change.

“The VJM06 doesn’t look massively different to its predecessor, but beneath the skin we’ve looked at every detail to try and find more performance,” says Team Principal, Dr Vijay Mallya. “I’ve followed the development of the car closely and I’m proud of what we have achieved. The objective now is to make sure we build on the promise of last year and have a strong start to the season.”

With his first full season of Formula 1 now in the bank, Romain Grosjean looks ahead to 2013 and a chance to build on a promising start to his second Lotus F1 Team career

How is the Romain Grosjean that starts the 2013 season different from the Romain Grosjean who started the 2012 season? How have you changed?

Well first of all I’m older! No, it’s clearly different for me this year. I have much more experience in Formula 1 and even if I knew the team before, I now know how to work with the engineers much better on the technical side. I also know all the tracks and understand better the various challenges of a season. Generally things worked out pretty well, although some things didn’t always turn out as good as we wanted. It’s going to be very interesting to start the new season.

The 2007 Formula 1 World Champion Kimi Raikkonen talks of his hopes for his second season with Lotus F1 Team after a successful comeback to the sport.

What are your thoughts heading into your second season with Lotus F1 Team?

I’m feeling pretty good. Last year was my return to Formula 1 and it went pretty well. This year will be my second with Lotus F1 Team and my eleventh season overall in Formula 1 so I’ve got a pretty good idea of what to expect. I’m sure it will be an exciting season and I’m sure there’ll be lots to talk about. For me, I will continue to do the best I can; let’s see how good our car is, and how good the cars of the opposition are too.