Red Bull Formula One driver Sebastian Vettel of Germany kisses his trophy on the podium after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Ahmad Masood

A supporter of Germany's Red Bull Formula One driver Sebastian Vettel reacts at the start of the Formula One Grand Prix of India in Dehli, at a public viewing session in Vettel's hometown of Heppenheim, southwestern Germany, October 27, 2013. REUTERS/Kai Pfaffenbach

Red Bull Formula One driver Sebastian Vettel of Germany bows down in front of his car after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi

Red Bull Formula One driver Sebastian Vettel of Germany celebrates atop his car after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi

Red Bull Formula One driver Sebastian Vettel of Germany throws his trophy in the air on the podium after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi

Supporters of Germany's Red Bull Formula One driver Sebastian Vettel celebrate during public viewing session of the Formula One Grand Prix of India in Dehli, in Vettel's hometown of Heppenheim, southwestern Germany, October 27, 2013. Vettel won the Grand Prix and his fourth successive driver's World Championship on Sunday. REUTERS/Kai Pfaffenbach (GERMANY - Tags: SPORT MOTORSPORT)

Red Bull Formula One driver Sebastian Vettel of Germany does a burnout to celebrate winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany does a burnout to celebrate winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

Mercedes Formula One driver Nico Rosberg of Germany (L) and Lotus F1 Formula One driver Romain Grosjean (R) of France spray champagne on the face of Red Bull Formula One driver Sebastian Vettel of Germany on the podium after the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)

Mercedes Formula One driver Nico Rosberg of Germany (L) sprays champagne on the face of Red Bull Formula One driver Sebastian Vettel of Germany on the podium after the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany throws his gloves into the crowd after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. Red Bull also took the constructors' championship for the fourth year in a row. The victory from pole position was the 26-year-old's sixth in a row and completed a hat-trick of wins in India where no other driver has ever won since the race made its debut in 2011. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany bows down in front of his car after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. Red Bull also took the constructors' championship for the fourth year in a row. The victory from pole position was the 26-year-old's sixth in a row and completed a hat-trick of wins in India where no other driver has ever won since the race made its debut in 2011. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

Red Bull Formula One driver Sebastian Vettel of Germany celebrates atop his car after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. Red Bull also took the constructors' championship for the fourth year in a row. The victory from pole position was the 26-year-old's sixth in a row and completed a hat-trick of wins in India where no other driver has ever won since the race made its debut in 2011. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

Red Bull Formula One driver Sebastian Vettel of Germany celebrates atop his car after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Supporters of Germany's Red Bull Formula One driver Sebastian Vettel celebrate during public viewing session of the Formula One Grand Prix of India in Dehli, in Vettel's hometown of Heppenheim, southwestern Germany, October 27, 2013. Vettel won the Grand Prix and his fourth successive driver's World Championship on Sunday. REUTERS/Kai Pfaffenbach (GERMANY - Tags: SPORT MOTORSPORT)

Red Bull Formula One driver Sebastian Vettel of Germany kisses his trophy on the podium after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. Red Bull also took the constructors' championship for the fourth year in a row. The victory from pole position was the 26-year-old's sixth in a row and completed a hat-trick of wins in India where no other driver has ever won since the race made its debut in 2011. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany raises his trophy on the podium after winning the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. Vettel became Formula One's youngest four-times world champion on Sunday after winning the Indian Grand Prix for Red Bull. Red Bull also took the constructors' championship for the fourth year in a row. The victory from pole position was the 26-year-old's sixth in a row and completed a hat-trick of wins in India where no other driver has ever won since the race made its debut in 2011. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

Supporters of Germany's Red Bull Formula One driver Sebastian Vettel react at the start of the Formula One Grand Prix of India in Dehli, at a public viewing session in Vettel's hometown of Heppenheim, southwestern Germany, October 27, 2013. REUTERS/Kai Pfaffenbach (GERMANY - Tags: SPORT MOTORSPORT SOCIETY)

Ferrari Formula One driver Felipe Massa of Brazil drives during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Lotus F1 Formula One driver Romain Grosjean of France drives during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Mark Webber of Australia reacts as he returns to the garage area after he retired from the race during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1 TPX IMAGES OF THE DAY)

Caterham Formula One driver Giedo van der Garde of Netherlands runs off the track with a damaged car during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)

Mercedes Formula One driver Nico Rosberg of Germany (L) and teammate Mercedes Formula One driver Lewis Hamilton of Britain drive during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany exits the pit lane after his first stop during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Lotus F1 Formula One driver Romain Grosjean of France (R) drives ahead of Williams Formula One driver Valtteri Bottas of Finland during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Williams Formula One driver Pastor Maldonado of Venezuela drives during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

A supporter of Germany's Red Bull Formula One driver Sebastian Vettel reacts at the start of the Formula One Grand Prix of India in Dehli, at a public viewing session in Vettel's hometown of Heppenheim, southwestern Germany, October 27, 2013. REUTERS/Kai Pfaffenbach (GERMANY - Tags: SPORT MOTORSPORT SOCIETY)

Force India Formula One driver Adrian Sutil of Germany drives during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

A supporter of Germany's Red Bull Formula One driver Sebastian Vettel holds up a placard reading "three titles are yours, Seb go for the fourth one" during a public viewing session of the Formula One Grand Prix of India in Dehli, in Vettel's hometown of Heppenheim, southwestern Germany, October 27, 2013. REUTERS/Kai Pfaffenbach (GERMANY - Tags: SPORT MOTORSPORT)

Mercedes Formula One driver Lewis Hamilton of Britain drives during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Ferrari Formula One driver Felipe Massa of Brazil drives during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany leads the field at the start of the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Red Bull Formula One driver Sebastian Vettel of Germany leads the field on turn one of lap one during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Adnan Abidi (INDIA - Tags: SPORT MOTORSPORT F1)

Grid girls clap as Red Bull Formula One driver Sebastian Vettel of Germany walks on a red carpet during the Indian F1 Grand Prix at the Buddh International Circuit in Greater Noida, on the outskirts of New Delhi, October 27, 2013. REUTERS/Ahmad Masood (INDIA - Tags: SPORT MOTORSPORT F1)