The countdown to F1 2012 continues this week, with the second pre-season test at Barcelona getting underway on Tuesday, February 21.

All the teams, except HRT will be at the Spanish circuit, with ten, including Mercedes, which will unveil its 2012 challenger at the track, running with their new cars. Marussia will be in action, but will use its old car.

The full planned line-up is as follows:

Red Bull

Sebastian Vettel - February 21st-22nd
Mark Webber - February 23rd-24th

McLaren

Lewis Hamilton - February 21st-22nd
Jenson Button - February 23rd-24th

Ferrari

Fernando Alonso - February 21st-22nd
Felipe Massa - February 23rd-24th

Mercedes

Michael Schumacher - February 21st and 23rd
Nico Rosberg - February 22nd and 24th

Lotus

Romain Grosjean - February 21st-22nd
Kimi Raikkonen - February 23rd-24th

Force India

Nico Hulkenberg - February 21st-22nd
Paul di Resta - February 23rd-24th

Sauber

Sergio Perez - February 21st-22nd
Kamui Kobayashi - February 23rd-24th

Toro Rosso

Jean-Eric Vergne - February 21st-22nd
Daniel Ricciardo - February 23rd-24th

Williams

Bruno Senna - February 21st
Valtteri Bottas - February 22nd
Pastor Maldonado - February 23rd-24th

Caterham F1

TBC

HRT

Won't run

Marussia

Charles Pic - February 21st-22nd and 24th
Timo Glock - February 23rd

Test line-up subject to change