Marc Gene will continue his test role with Scuderia Ferrari for at least another year, after signing an extension to his existing contract that has seen him working at Maranello since 2005.

"I'm honoured that I can continue working for Ferrari," said Gene. "My goal is clear, I want to help Ferrari and Fernando Alonso to have a car capable of winning the title."

Gene competed in F1 with Minardi for two seasons in 1999 and 2000, before taking a position as Williams' test driver which saw him fill in for a concussed Ralf Schumacher at the 2003 Italian Grand Prix, and then in the 2004 French and British when Schumacher suffered a back injury.

Despite his long association with Ferrari, he is not the team's official reserve driver to substitute for either Alonso or Felipe Massa in the event that either of the team's regular drivers are unable to compete. Last year, the role of reserve driver was filled by Jules Bianchi.

Instead, Gene's main involvement is working in the team's simulators, and also undertaking commitments with the team's many commercial sponsors. Gene also works as a television commentator for the F1 coverage of Spanish broadcaster Antena 3.

Since his last F1 outings, the 38-year-old Spaniard has become a successful competitor in the Le Mans 24 Hour with Peugeot alongside co-drivers including Jacques Villeneuve, David Brabham, Alexander Wurz and Anthony Davidson.

After Peugeot dropped out of the legendary endurance race at the end of 2011, Gene moved to the Audi team where he was paired with Romain Dumas and Loic Duval in the marque's #3 entry in the LMP1 class which finsihed in fifth place in last year's race.

Ferrari adds aerodynamicist

Ferrari also announced that they had signed British aerodynamics expert Martin Bester to bolster their design team ahead of the 2013 season. Bester will work for the head of aerodynamics Loic Bigois who joined from Mercedes during 2012.

Bester was previously aerodynamics team leader at Williams F1 where he worked alongside Bigois. Bester has also worked in the sport for BWM and McLaren.

Ferrari are currently using the old Toyota wind tunnel in Cologne to develop the F2013 car, while facilities at Maranello are being upgraded and extended.