Mercedes is yet to determine the reasons behind its Formula 1 engine failures during the Belgian Grand Prix. The German manufacturer introduced its latest power unit in Belgium but faced immediate reliability problems when Sergio Perez suffered a failure of his new-spec unit in second practice, resulting in Racing Point switching back to an older Mercedes engine for the remainder of the weekend. A second Mercedes failure occurred early in qualifying in Q1 when Robert Kubica’s Williams came to a halt with plumes of smoke pouring out of the back of his FW42. Despite the new engine, Mercedes was unable to match Ferrari’s superior straight-line speed, with team boss Toto Wolff saying its...
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