Indian GP: Sebastian Vettel fastest in final practice

Red Bull driver Sebastian Vettel made it a clean sweep of all three practice sessions at the Formula One India Grand Prix by setting the fastest time in Saturday's pre-qualifying run.

The F1 championship leader, who has won the past three races, was two tenths of a second faster than McLaren's Jenson Button, while Red Bull teammate Mark Webber was third at the Buddh International Circuit.

Ferrari's Fernando Alonso, who is only six points behind Vettel in the standings, was in a sobering seventh on the timesheets.

McLaren driver Lewis Hamilton was fourth, ahead of Lotus' Kimi Raikkonen, while Williams driver Bruno Senna put in a surprisingly strong performance to be sixth fastest.