Mercedes F1 engine reliability concerns a legacy of 2019 Ferrari fight

The German manufacturer has faced ongoing concerns about its power unit this season, with both Lewis Hamilton and Valtteri Bottas having been hit by a run of grid penalties since the summer break.
Hamilton, who is under investigation for a DRS infringement in qualifying, has taken a new internal combustion engine for this weekend’s Brazilian Grand Prix and will serve a five-place grid penalty …Keep reading