Renault boss Cyril Abiteboul has hit back at claims from Max Verstappen that the French manufacturer are reverting back to their original 'B-spec' components rather than the new 'C-spec' unit due to altitude issues, saying the Red Bull driver should "focus on his car" rather than engine conjecture. This week when previewing this weekend's Russian Grand Prix, Verstappen claimed that the new C-spec power unit parts would not be able to contend with the high altitude in the upcoming races in Brazil and Mexico, hence the return to the previous components. However, Abiteboul has taken umbrage to the comments, saying that every engine always performs worse in altitude. “I think...
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