Russian GP: Vettel and Coulthard test new Sochi track

BBC Sport's David Coulthard teams up with Red Bull's Sebastian Vettel to test out the new Formula 1 circuit at Sochi's Olympic Park ahead of the inaugural Russian Grand Prix in October.

Four-time world champion Vettel believes the track, which he compares to Korea in its layout, will be well suited to his Red Bull Renault.

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