Video: why Formula 1’s reverse-grid race hopes could be over. Reverse grids have been on and off the F1 agenda all season long.

Reverse grids have been on and off the Formula 1 agenda all season long, but looked like they’d inevitably become part of the 2021 season in some way. However, fresh opposition means Ross Brawn’s grand plan might be scuppered. Scott Mitchell explains the twist, and why some teams and so many drivers are against it.