If you want to know how Hammy passed Seb, watch the first embedded video "Hamilton and Vettel get close" in this article - Conclusions from the United States GP | Features & Experts | Sky Sports Formula 1

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MY09 Evo X - 1.6bar@3500rpm - got lag?
Barbagallo - 56.03 (S); 1:08.09 (L)
Collie - 50.77
Possibly the most under-driven Evo X in the world??