Vettel on pole for Brazilian Grand Prix SAO PAULO (Reuters) - Red Bull's quadruple world champion Sebastian Vettel took pole position for the season-ending Brazilian Formula One Grand Prix after a rain-delayed qualifying session on Saturday. Nico Rosberg made it an all-German front row with second place on the grid for Mercedes while Ferrari's Fernando Alonso qualified third. Vettel, who clinched his fourth title in a row in India last month, is chasing a record-equaling ninth successive win and 13th of the season on Sunday. Writing by Alan Baldwin in London, editing by Ken Ferris