• SAKHIR, BAHRAIN - APRIL 21: Nico Rosberg (front left) of Germany and Mercedes GP leads the field into the first corner at the start of the Bahrain Formula One Grand Prix at the Bahrain International Circuit on April 21, 2013 in Sakhir, Bahrain. (Photo by Vladimir Rys/Getty Images)

  • SAKHIR, BAHRAIN - APRIL 21: Nico Rosberg (front left) of Germany and Mercedes GP leads the field into the first corner at the start of the Bahrain Formula One Grand Prix at the Bahrain International Circuit on April 21, 2013 in Sakhir, Bahrain. (Photo by Vladimir Rys/Getty Images)
  • Mercedes driver Nico Rosberg of Germany leads the field during the Formula One Grand Prix at the Formula One Bahrain International Circuit in Sakhir, Bahrain, Sunday, April 21, 2013. (AP Photo/Hassan Ammar)
  • Mercedes driver Nico Rosberg of Germany, leads the field during the Formula One Grand Prix at the Formula One Bahrain International Circuit in Sakhir, Bahrain, Sunday, April 21, 2013. (AP Photo/Hassan Ammar)
  • SAKHIR, BAHRAIN - APRIL 21: Nico Rosberg of Germany and Mercedes GP leads the field through the first corner at the start of the Bahrain Formula One Grand Prix at the Bahrain International Circuit on April 21, 2013 in Sakhir, Bahrain. (Photo by Mark Thompson/Getty Images)
  • Red Bull driver Sebastian Vettel of Germany steers his car in front of Mercedes driver Nico Rosberg of Germany and Ferrari driver Fernando Alonso of Spain to win the Bahrain Formula One Grand Prix in Sakhir, Bahrain, Sunday, April 21, 2013. Vettel won the Bahrain Grand Prix Sunday, easily beating Lotus drivers Kimi Raikkonen and Romain Grosjean in a dominant performance that puts the German on pace to win his fourth drivers� championship. (AP Photo/Kamran Jebreili)
  • SAKHIR, BAHRAIN - APRIL 21: Sergio Perez of Mexico and McLaren drives during the Bahrain Formula One Grand Prix at the Bahrain International Circuit on April 21, 2013 in Sakhir, Bahrain. (Photo by Clive Mason/Getty Images)
  • Mercedes' British driver Lewis Hamilton, Lotus F1 Team's French driver Romain Grosjean and Lotus F1 Team's Finnish driver Kimi Raikkonen drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Scuderia Toro Rosso's French driver Jean Eric Vergne arrives in the pits with a shredded tire during the Bahrain Formula One Grand Prix in Manama, Bahrain, April 21, 2013 . Red Bull�s Sebastian Vettel won the Bahrain Grand Prix Sunday, easily beating Lotus drivers Kimi Raikkonen and Romain Grosjean in a dominant performance that puts the German on pace to win his fourth drivers� championship. (AP Photo/ Mohammed al-Sheik, Pool)
  • Force India's Scottish driver Paul di Resta drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • SAKHIR, BAHRAIN - APRIL 21: Sergio Perez of Mexico and McLaren drives during the Bahrain Formula One Grand Prix at the Bahrain International Circuit on April 21, 2013 in Sakhir, Bahrain. (Photo by Mark Thompson/Getty Images)
  • Red Bull Racing's Australian Mark Webber drives ahead of McLaren Mercedes' British Jenson Button, Mercedes' British Lewis Hamilton, Lotus F1 Team's Finnish Kimi Raikkonen, Lotus F1 Team's French Romain Grosjean and Mercedes' British Lewis Hamilton during the Bahrain Formula One Grand Prix on April 21, 2013 at the Bahrain International Circuit in Manama. AFP PHOTO TOM GANDOLFINITom Gandolfini/AFP/Getty Images
  • ScuderiaToro Rosso's Australian driver Daniel Ricciardo (top) and Williams' Finnish driver Valtteri Bottas drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / TOM GANDOLFINITom Gandolfini/AFP/Getty Images
  • Mechanics change tires on the car of Red Bull Racing's Australian driver Mark Webber in the pits at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MOHAMMED AL-SHAIKHMOHAMMED AL-SHAIKH/AFP/Getty Images
  • Drives race at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Lotus F1 Team's French driver Romain Grosjean and Force India's Scottish driver Paul di Resta drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Red Bull Racing's German driver Sebastian Vettel drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Force India's Scottish driver Paul di Resta and Lotus F1 Team's French driver Romain Grosjean drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Lotus F1 Team's Finnish driver Kimi Raikkonen drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Mercedes' British driver Lewis Hamilton drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Ferrari's Brazilian driver Felipe Massa drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • McLaren Mercedes' British driver Jenson Button drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Ferrari's Spanish driver Fernando Alonso drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Ferrari's Spanish driver Fernando Alonso drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Red Bull Racing's Australian driver Mark Webber drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • McLaren Mercedes' Mexican driver Sergio Perez (L) and McLaren Mercedes' British driver Jenson Button drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Red Bull Racing's Australian driver Mark Webber drives at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Mercedes' German driver Nico Rosberg, Red Bull Racing's German driver Sebastian Vettel and Ferrari's Spanish driver Fernando Alonso drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Red Bull Racing's German driver Sebastian Vettel and Ferrari's Spanish driver Fernando Alonso, Force India's Scottish driver Paul di Resta and Ferrari's Brazilian driver Felipe Massa drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • McLaren Mercedes' Mexican driver Sergio Perez, Sauber's German driver Nico Hulkenberg and Lotus F1 Team's French driver Romain Grosjean drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • William's Venezuelan driver Pastor Maldonado, Williams' Finnish driver Valtteri Bottas and ScuderiaToro Rosso's French driver Jean Eric Vergne drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Mercedes' British driver Lewis Hamilton, Lotus F1 Team's French driver Romain Grosjean and Lotus F1 Team's Finnish driver Kimi Raikkonen drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • McLaren Mercedes' British driver Jenson Button, Lotus F1 Team's French driver Romain Grosjean, Mercedes' British driver Lewis Hamilton and McLaren Mercedes' Mexican driver Sergio Perez drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Ferrari's Spanish driver Fernando Alonso, Ferrari's Brazilian driver Felipe Massa, Force India's Scottish driver Paul di Resta and Force India's German driver Adrian Sutil drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Force India's Scottish driver Paul di Resta and Force India's German driver Adrian Sutil, Red Bull Racing's Australian driver Mark Webber and Lotus F1 Team's French driver Romain Grosjean drive at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. AFP PHOTO / MARWAN NAAMANIMARWAN NAAMANI/AFP/Getty Images
  • Mechanics change tires on the car of Ferrari's Brazilian driver Felipe Massa in the pits during the Bahrain Formula One Grand Prix in Manama, Bahrain, April 21, 2013. It was a day to forget for Ferrari, with Alonso and Felipe Massa encountering problems early on that saw them fall out of contention. Alonso finished eighth while Massa was down in 15th. (AP Photo/Mohammed al-Sheik, Pool)
  • Red Bull driver Sebastian Vettel of Germany, left, leads Ferrari driver Fernando Alonso of Spain, right, and Mercedes driver Nico Rosberg of Germany, center, during the Formula One Grand Prix at the Formula One Bahrain International Circuit in Sakhir, Bahrain, Sunday, April 21, 2013. (AP Photo/Hassan Ammar)
  • Red Bull driver Sebastian Vettel of Germany, stands in his car in the pit celebrating his win in the Bahrain Formula One Grand Prix in Sakhir, Bahrain, Sunday, April 21, 2013. Vettel won the Bahrain Grand Prix Sunday, easily beating Lotus drivers Kimi Raikkonen and Romain Grosjean in a dominant performance that puts the German on pace to win his fourth drivers� championship. (AP Photo/Hassan Ammar)
  • (L to R) Lotus F1 Team's Finnish driver Kimi Raikkonen, Red Bull Racing's German driver Sebastian Vettel and Lotus F1 Team's French driver Romain Grosjean celebrate on the podium at the Bahrain International Circuit in Manama on April 21, 2013 during the Bahrain Formula One Grand Prix. Vettel won the race ahead of Raikkonen and Grojean respectively. AFP PHOTO / TOM GANDOLFINITom Gandolfini/AFP/Getty Images
  • Red Bull driver Sebastian Vettel of Germany, center, holds up the first place trophy as second place Lotus driver Kimi Raikkonen of Finland, left, shakes hands with a Bahraini official and Lotus driver Romain Grosjean of France stands on the podium after the Bahrain Formula One Grand Prix in Sakhir, Bahrain, Sunday, April 21, 2013. Vettel won the Bahrain Grand Prix Sunday, easily beating Lotus drivers Kimi Raikkonen and Romain Grosjean in a dominant performance that puts the German on pace to win his fourth drivers� championship. (AP Photo/Kamran Jebreili)
  • SAKHIR, BAHRAIN - APRIL 21: Race winner Sebastian Vettel (2nd right) of Germany and Infiniti Red Bull Racing celebrates with Gill Jones (2nd left) the Infiniti Red Bull Racing Electronic Support Group Leader, second placed Kimi Raikkonen (left) of Finland and Lotus and third placed Romain Grosjean (right) of France and Lotus following the Bahrain Formula One Grand Prix at the Bahrain International Circuit on April 21, 2013 in Sakhir, Bahrain. (Photo by Mark Thompson/Getty Images)