Max Verstappen disagrees with Sergio Perez's claims that Renault's engine is now on a par with Mercedes' power unit.
Verstappen captured Red Bull Racing's only podium to date this season when he finished third in China, but isn't sure his team's engine a partner has caught up with its German counterpart.
"Of course they (Renault) are working really hard," he said.
"We're also working really hard to improve the car. But I think there is still quite a deficit. So we need to continue working hard together to make it better in the upcoming races."
The young Dutchman said Mercedes still held an advantage, mainly in qualifying.
"Mercedes has a mode where they can turn it up," he said.
"In the race they cannot use it as much because you can't run the engine like that the whole race. That's why it looks better in the race but from our side, it's more or less the same.
"We don't have this massive power mode [for qualifying]."
GALLERY: All the pictures from Thursday in Sochi
Keep up to date with all the F1 news via Facebook and Twitter
At 43, Fernando Alonso is Formula 1’s silver fox, still zipping around tracks with the…
Ferrari team principal Fred Vasseur has delivered a resolute rebuttal to suggestions that 2025 is…
Promoters of the 2026 Spanish Grand Prix in Madrid have released the first official video…
McLaren Racing has announced that it will withdraw from Formula E at the end of…
On this day in 2001, the world of motorsport mourned the loss of Michele Alboreto,…
Racing Bulls CEO Peter Bayer has opened up about the emotional toll Liam Lawson experienced…