Vettel on track to rewrite F1 record book

With Sebastian Vettel's fourth successive Formula One title now just a formality, the more intriguing question is whether the Red Bull driver can go on to match a record that has stood for 60 years.

With a 90- point lead overFerrari's Fernando Alonso, the 26-year-old German should become the sport's youngest quadruple champion in India next week.

Alonso is his only rival still mathematically in contention, with four races remaining.