In Pictures: F1 practice sessions

ABU DHABI , UNITED ARAB EMIRATES Ð Nov 11 : Sebastian Vettel of Red Bull Racing team during the Formula 1 second practice session at the Yas Marina Circuit in Abu Dhabi. ( Pawan Singh / The National ) For Sports. Story by Graham and Gary

Jeroen Bleekemolen of team Abu Dhabi by tolimit during the Porsche Mobile 1 Supercup practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Fernando Alonso of Scuderia Ferrari team during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Michael Schumacher of Mercedes GP Petronas F 1 team during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Lewis Hamilton of Vodafone McLaren Mercedes team during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Felipe Massa of Scuderia Ferrari team during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Jenson Button of Vodafone McLaren Mercedes team before the start of Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Mark Webber of Red Bull Racing team before the start of Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Sebastian Vettel of Red Bull Racing team sitting in his F1 car before the start of Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National )

Team members of Scuderia Ferrari during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. ( Pawan Singh / The National )

Team members of Red Bull during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National )

Spectators watch F1 racing at Yasalam on the Abu Dhabi Corniche November 11, 2011. (Sammy Dallal / The National)

Romain Grosjean of Lotus Renault GP team during the Formula 1 first practice session at the Yas Marina Circuit in Abu Dhabi. ( Pawan Singh / The National )

Mark Webber of Red Bull Racing team during the Formula 1 second practice session at the Yas Marina Circuit in Abu Dhabi. (Pawan Singh / The National)

Sebastian Vettel of Germany and Red Bull Racing drives during practice for the Abu Dhabi Formula One Grand Prix at the Yas Marina Circuit. (Photo by Paul Gilham/Getty Images)

Lewis Hamilton of Great Britain and McLaren drives during practice for the Abu Dhabi Formula One Grand Prix at the Yas Marina Circuit. (Photo by Mark Thompson/Getty Images)

A tow truck carrying the car of Ferrari Formula One driver Fernando Alonso of Spain arrives to the pits after Alonso crashed during the second practice session of the Abu Dhabi F1 Grand Prix at Yas Marina circuit in Abu Dhabi November 11, 2011. REUTERS/Ca???

Pit crew members for the Ferrari Formula One team bring in the car of Fernando Alonso of Spain after he crashed during the second practice session of the Abu Dhabi F1 Grand Prix at Yas Marina circuit in Abu Dhabi November 11, 2011. REUTERS/Hamad I Mohamma??