Apr.13 Mercedes in Shanghai had to tweak a new front wing design after the FIA declared it illegal. Auto Motor und Sport confirmed that the German team had to add a small piece to the endplate because its original shape did not conform to the regulations. Reportedly, Red Bull and Williams made similar tweaks earlier this season. Mercedes' new wing coincided with an apparent return to Ferrari's pace for the reigning champions, with Valtteri Bottas looking fastest in China. However, Toto Wolff said he thought one particular lap done by Sebastian Vettel in practice was "frightening" in terms of Ferrari's straight line speed. Red Bull is also right back on the pace this weekend....
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