F1: The season so far...

BBC Sport recaps a 2013 Formula 1 season that already includes plenty of the usual drama and controversy.

Beginning in Australia in March, it takes in stops in Malaysia,China,Bahrain,Spain and Monaco.

The season moves on with the Canadian Grand Prix this weekend, with defending champion Sebastian Vettel leading the standings and two former world champions Kimi Raikkonen and Fernando Alonso right behind him.

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