Formula 1 has introduced rule changes for the 2019 season aimed at making overtaking easier and promoting closer racing.
The modifications to the cars have been based on research aimed at finding ways of making it less difficult for one car to follow closely behind another.
"The studies indicated a likelihood of a positive impact on racing and overtaking," the FIA said.
It amounts to a victory for FIA and F1 after opposition from some teams.
More to follow.