Practice Two - Hamilton fastest again for Mercedes in Korea

Lewis Hamilton followed up his impressive Practice One showing by clocking the fastest time in second practice in Korea on Friday. The Mercedes driver's best time of 1m 38.673 was 0.108s faster than Sebastian Vettel's quickest effort of 1m 38.781 for Red Bull, as both drivers trimmed their times by switching from the medium compound Pirelli tyres to the supersofts

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