Mercedes boss Toto Wolff says an engine degradation issue diagnosed on Lewis Hamilton's unit led the Brackley squad adding a new ICE to the Briton's pool of hardware. The odds of Mercedes fitting a fresh engine to Hamilton's W12 increased in last weekend in Mexico City. While the change was seen as a strategic possibility to safeguard the Briton against a potentially ruinous DNF, Wolff revealed that principal motivation for the move. "We feel that we can score more points," the Austrian told Sky Sports F1. "We have deg [degradation] on the engine that, until the end of the season, is just going to continue to decrease in power. And we haven't yet realised why that is, we're...
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