Pedro : " ferrari is using this gas mixture in their tyres , stepney told us . "
德拉罗萨:“法拉利使用硝基混合气体充填轮胎,斯蒂芬尼告诉我们的。”
In april , it was alleged that mclaren 's chief designer , mike coughlan , had received technical information from nigel stepney , ferrari 's chief engineer .