This is F1Minute - Sauber confirm departure of technical lead James Key.

The Sauber team have announced that technical director James Key is to leave the squad, heading for another job in the UK. Based in Hinwil, Switzerland up until this point, Key has handed over development of the 2012 car to the remaining technical team, saying: “I’ve enjoyed the past two years working at Sauber. It’s been a very instense and interesting time, in which we had to manage the transition from a much larger team to a smaller one, and everybody handled that very well.”

Key hasn’t announced where his new job is, but it’s unfortunate timing for Sauber, as they head into a new season. Peter Sauber said: “A qualified team shares the overall technical responsibility. This structure has proved to work well at other racing outfits. Over a period of almost two years, James has accomplished a lot for our team. We would like to thank him for his efforts, and wish him all the best for his future.”

Welcome to F1Minute - HRT complete driver lineup with Narain Karthikeyan.

The 2012 grid is complete as HRT have finally announced their full driver lineup, with Indian driver Narain Karthikeyan rejoining the outfit alongside Pedro de la Rosa. Karthikeyan was an HRT driver for the start of the 2011 season, but found himself replaced by the incoming Daniel Ricciardo until, of course, the Indian Grand Prix.

Now he has the chance to start another season with the hopes of keeping his seat for the entire duration. Talking of the deal, he says: “I have been training hard since the end of 2011, ensuring I was ready for the rigours of F1 if an opportunity arose. I am delighted to have signed with the HRT F1 team. With the new management, Pedro, and the team, there is definite potential for progress.”

New team principal at HRT, Luiz Perez-Sala is keen to get started, saying: “I’m sure the fact that he will continue to work and drive on a regular basis will help him take a step forward this season. And if he advances, so does the team.”

You’re listening to F1Minute - Force India roll out the VJM05 at Silverstone.

The Force India drivers, Paul di Resta and Nico Hülkenberg, plus reserve driver Jules Bianchi, were on hand at Silverstone today to reveal the 2012 car - the VJM05. Featuring a similar bump in the bridge of the nose as the Ferrari and Caterham, the Force India also has new sidepods to fit with the exhaust regulations.

Technical boss at the team, Andrew Green, is confident that the new rules will help improve the competition, saying: “My feeling is it should close the field up... I think there are teams out there that extracted way more than we did and hopefully that will hurt them more than it’s going to hurt us.”

He also added that the team have taken a big philosophy change when it comes to aerodynamics but it’s looking positive, saying: “It’s a big departure from where we have been before and the tunnel numbers are really, really encouraging, so we’re quite looking forward to getting on the track and seeing if it does produce what it should do.”