Renault say there are "still question marks" over whether Robert Kubica can make a full-time return to Formula 1 after life-changing injuries. The 32-year-old Pole has had three tests with Renault in the last three months, six years after he suffered a partially severed right arm in a rally accident. Renault F1 boss Cyril Abiteboul told BBC Sport: "Have we definitively answered the question whether he can race again? No." Kubica's manager said he believed he had "shown he can be a serious candidate". Hamilton fastest in Belgian GP second practice Alessandro Alunni Bravi said Kubica's goal was to race for Renault in 2018, adding: "Our goal was to become a...
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