Red Bull team principal Christian Horner has confirmed the RB16B is not an "all-new car" but rather an "extensive update" of the team's 2020 machinery.
In a bid to lower costs throughout the Covid-19 pandemic, teams agreed to push back the radical new aerodynamic regulations by a year to 2022 and predominantly run last year's car this season.
Teams were each granted two development tokens to allow for larger components to be updated, leading to Red Bull developing a new nose structure, and the decision to designate its 2021 car as a 'B-spec'.
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