Potential aerodynamic changes to improve overtaking in 2019 will be a key topic debated at Tuesday's Formula 1 Strategy Group meeting in Paris, with deadlines looming and some teams resistant.
failed to reach a consensus on a solution." data-reactid="32">Following the lack of passing in the Australian Grand Prix, a Bahrain meeting involving the FIA, F1's chief technical officer Pat Symonds and team technical bosses failed to reach a consensus on a solution.
Discussions will now move on to team boss level at the Strategy Group.
In theory the deadline for any technical regulation changes for 2019 is April 30, although they can be made after that date with a unanimous team vote of.
That could prove hard to achieve with teams voicing concerns about the principle of the changes, the timing and potential cost.
"The question first of all is what is the strategy behind it?" said McLaren racing director Eric Boullier.
"Is is just for overtaking, and is it a knee-jerk reaction after Australia?
"If it's a reaction to Australia, that's maybe a bit too fast."
The team of researchers working under Symonds to hone the 2021 F1 rules package has also been helping FIA technical boss Nicolas Tombazis investigate what changes could be made for 2019 to make following cars easier.
Research has indicated that 'out-washing' front wing endplate elements designed to control the airflow around the front wheels have a detrimental effect on the following car.
Removing those elements, along with a bigger rear wing flap and more powerful DRS, has been proposed as a stopgap measure for overtaking before the 2021 changes.