The new qualifying format could cause a "line like on Saturday at the cashier of the supermarket" at the start of sessions, says Ferrari boss Maurizio Arrivabene.
The controversial new rules have adopted a live elimination format for qualifying in 2016, starting with this weekend's opener in Australia. Sergio Perez warned on Thursday the new format has the danger of being "boring" for fans if drivers and teams want to save tyres and avoid going out again after setting an initial lap.
Ferrari voiced apprehension to the new format despite voting in favour last month. With high importance placed on an early lap, Arrivabene thinks the new system could lead to a busy flurry of activity when the clock starts ticking.
"I don't want to be against any changes, Ferrari don't want to be against the change, I simply think that maybe giving a bit more time to the team to work on ideas was better," Arrivabene said. "But I can't say so with a certainty. The only certainty is that more probably tomorrow at the beginning of the qualifying we are going to see a line like on Saturday at the cashier of the supermarket - everybody wants to go out. Then we will see. It's not fair to criticize before that has happened."
McLaren racing director Eric Boullier is another person yet to be convinced the new format is the way forward.
"There is some upside and downside. The qualifying format we had before, I think we all agree, was a successful format. We were used to it. I think it is true that there will be more traffic at the beginning of each qualifying segment and there should be more unpredictability for the final result, but we will see."