Vettel fastest in second practice at Japanese GP ahead of Red Bull teammate Webber

Red Bull driver Sebastian Vettel had the fastest time in Friday's second practice session for the Japanese Formula One Grand Prix, indicating the German is in a good position to clinch his fourth straight championship in Sunday's race.

Vettel's time of 1 minute, 33.852 seconds around the Suzuka circuit was 0.168 seconds faster than teammate Mark Webber. Mercedes driver Nico Rosberg was two-tenths of a second off Vettel's time.

Vettel has won three of the past four races in Japan and will be aiming to clinch his fourth successive title in Sunday's race. He needs to win and have nearest rival Alonso finish worse than eighth.

Lotus driver Kimi Raikkonen, who had a mid-session spin, was fourth fastest, followed by teammate Romain Grosjean.