For the first time since Austria, the three softest compounds in the range have been nominated for this weekend's Russian Grand Prix: C3 as the P Zero White hard, C4 as the P Zero Yellow medium, and C5 as the P Zero Red soft. This is the same nomination that was made in Russia last season, when the event was held at a similar time of year. Sochi is a low severity track and the track surface has been steadily maturing since the asphalt was originally laid nearly a decade ago. As a result, the softest rubber in the P Zero range is the perfect choice for the Russian track. The weather should be quite mild at this time of year, so helping to reduce thermal degradation, although this aspect is...
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