BBC Sport - Murray Walker's F1 season review part two

Murray Walker's F1 season review part two

Commentary legend Murray Walker gives his verdict on a supreme season so far from Red Bull driver Sebastian Vettel as he races to a 77-point lead in the championship. Walker assesses an inspired win from Jenson Button but finds his McLaren team-mate Lewis Hamilton in "dispirited" mood. Walker also predicts Ferrari will win a race in 2011.

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