F1 2022 rules revolution: 18-inch tyre testing continues as next year's changes draw ever nearer, F1 News
Red Bull, Alpine and Alfa Romeo the latest teams in action in Pirelli testing to try next seasons new larger tyres; F1 cars will look radically different in 2022 as part of overhaul of technical regulations
Red Bull, Alpine and Alfa Romeo have been in Pirelli testing action at Barcelona as part of the programme for next year's rule changes.
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History of Formula One regulations - Wikipedia
