Championship leader Nico Rosberg topped the times ahead of title rival and Mercedes team-mate Lewis Hamilton in Friday's second free practice session for the Italian Grand Prix. The German, who leads Hamilton by 29 points in the title race, clocked a best time of 1min 26.225sec early in the 90-minute session, long before Hamilton, hampered by electrical problems, entered the fray with only half-an-hour remaining.
Hamilton, keen to make up for lost time spent waiting for repairs to sensors that had prevented his team from starting his engine, was swiftly on the pace and finally clocked a lap that was only 0.061sec adrift of Rosberg.
This was clear evidence of his pace on a day when he had shown masterful speed in the morning to top the opening practice times. He was fastest in both of the first two lap sectors, but was held up by traffic in the third – enough to show he had the raw speed to be fastest if he had a trouble-free run.
Finn Kimi Raikkonen was one-tenth of a second down in third place in the leading Ferrari ahead of his team-mate Fernando Alonso as the 'scarlet scuderia' enjoyed their traditional Friday form at the old Autodromo. Fast-improving Finn Valtteri Bottas was fifth for Williams, ahead of Britain's Jenson Button in his McLaren, with defending four-time champion Sebastian Vettel of Germany showing improved form for Red Bull back at the circuit where he gained his maiden victory in 2008.
Mexican Sergio Perez had set the early fastest time in his Force India car, powered by Mercedes, before Rosberg took over at the top as the Mercedes factory team, at times, stood to form a human wall at the front of their garage, while mechanics worked furiously to discover what it was that was stopping Hamilton's car from firing up.
