Ferrari driver Fernando Alonso of Spain steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Red Bull driver Sebastian Vettel of Germany steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Ferrari driver Fernando Alonso of Spain steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Red Bull driver Mark Webber of Australia steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Sauber driver Kamui Kobayashi of Japan steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Darron Cummings)

Ferrari driver Fernando Alonso of Spain steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Darron Cummings)

Marussia driver Charles Pic of France leads Lotus driver Roman Grosjean of France into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Darron Cummings)

Red Bull driver Sebastian Vettel of Germany leaves from the pits during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany leaves from the pits during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany walks out of his garage during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain waits outside of his garage before the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany listens to a crew member in the pits during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany smiles in the pits during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany smiles in the pits during the first free practice session for the Formula One's US Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Mark Webber of Australia waits in his car during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain pulls out of the pits during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany steers his car into the first turn during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain smiles in the pits before the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany waits in his car during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain leads Red Bull driver Sebastian Vettel of Germany into turn one during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Marussia driver Timo Glock of Germany brakes as he goes into turn one during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany climbs out of his car during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany hands a drinks to a crew member during the first free practice session for the Formula One's U.S. Grand Prix at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Red Bull driver Sebastian Vettel of Germany, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Darron Cummings)

Ferrari driver Fernando Alonso of Spain, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Ferrari driver Fernando Alonso of Spain, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Darron Cummings)

Red Bull driver Sebastian Vettel of Germany, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Darron Cummings)

Red Bull driver Sebastian Vettel of Germany, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

Sauber driver Kamui Kobayashi of Japan, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

McLaren Mercedes driver Lewis Hamilton of Britain, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. The race is scheduled for Sunday.(AP Photo/David J. Phillip)

Red Bull driver Mark Webber of Australia, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. The race is scheduled for Sunday. (AP Photo/David J. Phillip)

McLaren Mercedes driver Lewis Hamilton of Britain, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. The race is scheduled for Sunday.(AP Photo/David J. Phillip)

Sauber driver Sergio Perez of Mexico, steers his car during the second free practice session for Formula One's U.S. Grand Prix auto race at the Circuit of The Americas, Friday, Nov. 16, 2012, in Austin, Texas. The race is scheduled for Sunday. (AP Photo/David J. Phillip)

Mercedes driver Michael Schumacher of Germany steers his car during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

McLaren Mercedes driver Jenson Button of Britain steers his car during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Red Bull driver Mark Webber of Australia steers his car during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Ferrari driver Fernando Alonso of Spain steers his car during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Mercedes Grand Prix driver Nico Rosberg of Germany during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/David J. Phillip)

An America flag flies in a chain fence as a Formula One car pass during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Mercedes Grand Prix driver Nico Rosberg of Germany steers his car during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Red Bull driver Sebastian Vettel of Germany steers his car during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)

Marussia driver Charles Pic of France steers his car as a helicopter flies during the second free practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas Friday, Nov. 16, 2012, in Austin, Texas. (AP Photo/Eric Gay)