BBC Sport - McLaren drivers demand upgrades after European Grand Prix
McLaren drivers demand upgrades
- From the section Formula 1
Lewis Hamilton insists he was not frustrated in finishing fourth at the European Grand Prix in Valencia, but feels the McLaren team have not made the advances of some of their rivals recently.
Hamilton believes if there is not an improvement in rear downforce they could lose out again at Silverstone.
While team-mate Jenson Button doubts whether new rules on exhaust-blown diffusers will make much difference to the cars at the front of the grid.
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