Kimi Raikkonen has said that he will not judge Liberty Media until the next generation of Formula 1 cars emerges in a few years' time.
Already, top teams are threatening to quit the sport and complaining about declining revenue, even though new owner Liberty says that more spectators watched F1 in 2017.
Ferrari driver Raikkonen is quoted by Auto Hebdo as saying: "They are trying to make it better, easier to follow and more involving the public.
"But it will only be in a few years, when the new regulations are in force [in 2021], that we will really see the impact of their arrival.
"I think they're putting a lot of effort in, listening to everyone and asking the right questions. I think we'll see if it has been good when we get the new cars."
Raikkonen finished fourth in the 2017 drivers' championship.
