The Formula 1 grid had their first look at the new Jeddah Corniche Circuit ahead of the Saudi Arabian Grand Prix.
The Australian Formula 4 championship returns with a new name and new promoter this year.
Delays in shipping Toyota Formula Regional Oceania cars from NZ have delayed the new series.
McLaren has announced it will withdraw from Formula E at the end of the current season.
The all-electric FIA Formula E world championship will get the Drive to Survive treatment with a new series to launch in coming days.