Helio Castroneves will attempt to become the first driver to win the Indianapolis 500 five times as part of a full-time return to IndyCar racing with Meyer Shank next year.
McLaren technical director James Key is confident F1 teams will not undercut new 2022 regulation aims of producing closer racing.
Mercedes say the upgrade package they introduced at the British Grand Prix helped cut their deficit to Red Bull, but it is their last major step this year.
Fernando Alonso says Formula 1's rules aren't being enforced by the race director, and he will change his approach to racing as a result.
In the round-up: Chassis change and other fixes solved problems immediately - Ocon • Vettel visits recycling plant • Corberi karting ban upheld