Teams have warned Pirelli that they will be “short of tyres” if qualifying was extended to include a Q4 session.
It was reported by Motorsport.com that teams pushed forward with the idea of a four-session knockout qualifying at the recent Strategy Group and F1 Commission meetings.
But, teams remain sceptical that the idea of a Q4 qualifying session next year will work, unless the current number of 13 allocated sets of tyres per weekend is increased.
It is understood that Pirelli don’t want to provide extra tyres free of charge for 2020, which could prove a stumbling block.
Speaking to Motorsport.com, Red Bull team principal Christian Horner said: “What you don’t want to end up with is cars not running in Q4 because there are no tyres left. So are there enough tyres to support the initiative?
“We’re open to any ideas but you have to really do your homework to make sure we don’t just change for the sake of change.
“It feels like we’re a little bit short of tyres at a first look at that first four sectors of qualifying. We’re running the simulations.”
Teams have already begun simulator work on the proposed new format, and Ferrari principal Mattia Binotto wants to ensure the work is done properly to make sure the change doesn’t “introduce any issues”.
“We have already started the simulations, so it is something we are working on,” he explained.
“We are positive about the times [of the sessions] and that the simulation is being done properly to make sure we are not introducing any issues. We are expecting the latest wording for the proposal and then we’ll go through it.”