Lewis Hamilton admits that Mercedes are still wrestling with the "mystery" over their sudden loss of performance in Mexico as they look to wrap up constructors' championship glory at the Brazilian Grand Prix. Although Hamilton won his fifth world drivers' title in Mexico, Mercedes struggled, finishing fifth and sixth. The Silver Arrows seemed to struggle with tyre life at altitude in Mexico City and a trip to Sao Paulo offers up similar challenges, although not as extreme. Mercedes topped the timesheets in FP2 at Interlagos, Valtteri Bottas pipping Hamilton by 0.003 seconds. And the newly crowned champion admits that keeping tyres in the optimum window remains a challenge that...
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