The safety auto was then deployed for a big crash, which ended Marcus Ericsson's race.
Hamilton finally made his stop on Lap 25 and came back out in sixth behind Raikkonen in fifth, with Vettel leading from Bottas and the two Red Bulls.
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"You're a lion", the elated team told him over the radio at the checkered flag as they celebrated Ferrari's first win in Britain since 2011. Pierre Gasly was 10th for Toro Rosso. Sauber's Marcus Ericsson loses control over his auto and crashes one of the safety walls.
"Because you know that he's going to improve again, so I've got to improve the same and a bit more".
Shortly after, team boss Toto Wolff said: "First time we get taken out, now today is the second time we get taken out, that a lot of constructor points". "I took the 10 seconds and kept fighting".
On another sweltering afternoon in central England, with a track temperature of 53 degrees Celsius (127 degrees Fahrenheit), the drama began immediately.
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The incident at Turn 3, which saw Raikkonen collide with the Briton sending him into a spin which dropped him to last, follows a similar clash in France in which Vettel hit Valtteri Bottas at the first corner. He was 19th and last, Brendon Hartley having failed to start in his Toro Rosso.
"With the whole build up, with the whole intensity, with the whole spur-of-the-moment thing, knowing how close we were, for me it feels like one of the best laps that I've been able to produce", he said.
Hamilton was 29 seconds behind leader Vettel and 11 behind Raikkonen, but he was turning in the quickest laps of the race, and when Daniel Ricciardo stopped for a second time, he was up to fifth.
Hamilton secured pole 24 hours earlier, but his getaway here was slow and it was not long before Vettel had passed the Brit for the lead with Bottas following suit.
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Physically, we would be able to dismantle the overwhelming bulk of their programs within a year", Bolton said. Collins stressed the need for "verifiable, unimpeded, reliable inspections" of the North's weapons programs.