Mercedes' performance in Austria was compromised by the fundamental design of its W10 and its cooling system which was very much on the edge in Austria's scorching temperatures. The Silver Arrows squad was inflicted its first defeat of the season last weekend, with Valtteri Bottas and Lewis Hamilton finishing respectively third and fifth at the Red Bull Ring. In Mercedes' usual post-race Pure Pitwall video, trackside engineering director Andrew Shovlin revealed that the cooling system of its 2019 contender - which Mercedes boss Toto Wolff has called the 'Achilles' heel' of the W10 - had simply "under-delivered" in the hot temperatures. Honda admits engine was 'on the edge' in...
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