Force India garageForce India says it is not planning to announce its second driver in time for the launch of its 2013 car.

The Silverstone-based team is, together with Caterham, the only Formula 1 squad yet to confirm its second driver for the upcoming season. Jules Bianchi and the team's former driver Adrian Sutil are believed to be the main candidates to partner Paul di Resta.

Force India will launch its 2013 car – the Mercedes-powered VJ06 – on Feb. 1 before it begins testing at Jerez four days later. Deputy team boss Bob Fernley told AUTOSPORT on Friday, however, that the launch will not be used to announce its second driver. He commented, "The launch is to launch the VJ06," but added the lineup would be confirmed "probably before the first test".

When asked if the test might be used to evaluate drivers, he replied: "That's]very unlikely."

2013 Formula 1 lineup so far:

Red Bull     Sebastian Vettel  Mark Webber
Ferrari      Fernando Alonso   Felipe Massa
McLaren      Jenson Button     Sergio Perez
Lotus        Kimi Raikkonen    Romain Grosjean
Mercedes     Lewis Hamilton    Nico Rosberg
Sauber       Nico Hulkenberg   Esteban Gutierrez
Force India  Paul di Resta     seat still available
Williams     Pastor Maldonado  Valtteri Bottas
Toro Rosso   Daniel Ricciardo  Jean-Eric Vergne
Caterham     Charles Pic       seat still available
Marussia     Timo Glock        Max Chilton