https://www.youtube.com/watch?v=_tLP7qLMMiw

2021 is a case of evolution rather than revolution, with most of the teams only making small tweaks to their cars. Nevertheless, Sam Collins takes a look at the aero developments up and down the grid at pre-season testing in Bahrain. The full episode of Tech Talk is available now for F1 TV subscribers: http://f1.com/2021Test-TTDay1 For more F1® videos, visit http://www.Formula1.com Follow F1®:

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More What Upgrades Have The Teams Made? | Tech Talk | 2021 Pre-Season Testing Videos