Once again, high temperatures are forecast for the German Grand Prix weekend. Renault boss Cyril Abiteboul fears the warm weather might hamper Renault's chances of catching up with McLaren because it'll cause problems with tyres and the engine.  "Hockenheim and the Hungaroring should suit our package better although the extreme temperatures we expect to encounter may present challenges for the engine or tyres - a little like in Austria - however, we will do our best to achieve the best results possible," Abiteboul said.  McLaren has been in fine form over the last four Grands Prix. They've opened a 21 point gap in the Formula 1 constructors championship over...
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