Formula 1
Bernie Ecclestone reveals he vetoed Vietnam Grand Prix
Exclusive: The former F1 chief gave the red light to the proposals over calendar concerns
Honda poised for Sauber engine deal but McLaren future in major doubt
Sauber are ready to ditch the 2016 Ferrari engines and could make the switch mid-season to take on the suspect Honda power units
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Vettel insists Mercedes are still Formula One's top dogs
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Bottas impresses with fastest lap so far in pre-season testing
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McLaren suffer more reliability problems during testing
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Hamilton issues parting gift to Rosberg as he talks up Bottas switch
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Hamilton and Channel 4 to blame as F1 viewing figures drop by 5.1m