NEW DELHI:-Formula One World Champion Sebastian Vettel is all set to claim his fourth drivers’ title in a row. The Red Bull driver has yet again proved that he is a force to reckon with. Like past three seasons, this year has been no different to him. In the 19-race long season, three-time reigning champion Vettel is comfortably sitting at the top of the Drivers’ Championship with 272 points, a lead of 77 points to Ferrari’s Fernando Alonso, who is holding the second spot after the Korean GP -- 13th race of the season. –Agencies