Rumours spread during preseason testing that the latest spec engine’s introduction could be postponed as Mercedes was concerned about a potential problem with the crankshaft.
A high-level source at Mercedes has dismissed the rumours.
The manufacturer team will use the latest spec power unit at the first race of the season, and their customer teams – Williams and Force India currently – will have the same opportunity.
It’s expected Mercedes had been running its engine in a conservative mode during testing, meaning Ferrari may not have the advantage it appeared to at Barcelona when the engine is turned up.
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