New tyre debut at Silverstone still possible says Marko 9 June, 2013 Sebastian Vettel with Helmut Marko in Canada Helmut Marko is not ruling out Pirelli's tyre tweak being introduced for racing at the British Grand Prix late this month. The tyre, featuring modifications to the construction to prevent the sort of rear delamination problems seen in 2013, was tested by teams in Friday practice in Canada. Pirelli wants the tyre to be debuted properly at Silverstone, but that would require the unanimous consent of all the teams — and given the divisions up and down pitlane, Paul Hembery acknowledges that scenario is 'very unlikely'. But Helmut Marko, whose Red Bull team has been pushing...
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