Rumour has it that Vettel has freed up some space in his body by removing a few of his vital organs, muscles, etc, and has replaced them with bags of helium. It's also rumoured that his bones are now the same kind that birds have and the hollow spaces in them are also filled with helium.
When asked about the legality of this, Christian Horner replied that, "Vettel takes his competitivity very seriously and that it's no laughing matter."
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