Championship leader Nico Rosberg continues the domination; the German was quickest in practice one for the 2014 British Grand Prix at Silverstone, 0.731s faster than his team-mate Lewis Hamilton.
Susie Wolff’s race weekend debut ended in huge disappointment. she completed just one lap – which put her fastest out of three drivers at the time – before rolling to a stop following oil pressure trouble.
Morning practice session was red-flagged for more than 15 minutes following Felipe Massa hugely crashed with his Williams.
Fernando Alonso was set third fastest, just 0.839s behind the top man Rosberg, the Spaniard set the best lap right at the end of the session following a rear-wing change.
The Red Bull speedy, Daniel Ricciardo was fourth quickest and discontinued his session following the gearbox problems, and the Australian still faster than team-mate Sebastian Vettel.
Kimi Raikkonen managed fifth fastest ahead of defending world champion Sebastian Vettel. Local hero, Jenson Button was fastest of the two McLarens, and he finished with seventh fastest ahead of Toro Rossos duo Daniil Kvyat, Jean-Eric Vergne and his team-mate Kevin Magnuseen.