Lewis Hamilton has vowed to defend his world title by even 'racing his heart out'.
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Lewis Hamilton vows to defend world title
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'Vitaly will remain in formula one next year, and the year after and three years from now'
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Hamilton crashes in practice
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Rosberg continues to dominate
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Lewis Hamilton wins wet British Grand Prix
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Mark Webber aims to deliver his best in the season ahead --
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Hamilton takes pole for Australian Grand Prix
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Hamilton returns to the track
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Green to defend title
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Betvictor make Lewis Hamilton their 5/2 favourite for the Chinese Grand Prix in three weeks.
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Andy Murray to defend title
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Hamilton 'can't complain' despite fourth
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Hamilton remains positive
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F1 driver Webber wants to press on
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Raikkonen focuses on title challenge
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Contador will defend Tour de France title
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Lewis Hamilton may soon outdo becks as biggest sporting star