Vettel fastest again in second Shanghai practice session

Red Bull's Sebastian Vettel once again demonstrated his supremacy over his Formula One rivals as he posted the quickest time in second practice for Sunday's Chinese Grand Prix in Shanghai.

The reigning world champion was quickest in the morning's first session and maintained his stranglehold with another perfectly judged display, his time of one minute 37.688 seconds enough to eclipse second-placed man Lewis Hamilton by 0.166secs.