Red Bull Team Principal Christian Horner has confessed doubts that his team won't be able to repeat its success from this year's Formula 1 campaign.
The Milton Keynes-based outfit won 21 out of the 22 races staged with its only defeat coming at the Singapore Grand Prix.
Max Verstappen won 19 of the events en route to his third F1 championship with Sergio Perez securing two victories towards the start of the campaign.
Prior to its defeat in Singapore, Red Bull claimed 15 race wins in a row - beating McLaren's long-standing record from 1988.
“It’s been a remarkable season for us,” Horner told media including RacingNews365.com at the FIA Prize-Giving Gala.
“I think none of us could have ever imagined this kind of season that we've just completed.
“To win 21 out of the 22 races, five out of the six sprint races, defend both titles and break many records along the way, it’s something that has stood since 1988.
“It epitomises that every aspect of the team has just been operating at a phenomenal level.”
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Verstappen has stated that he expects the field to be closer next year as rival teams uncover more potential from the regulations.
Horner mirrored the Dutchman's comments and admitted he isn't expecting a repeat of the dominant 2023 campaign next season.
“It’s not just the design of the car and the operation of the car,” Horner said. “It's the production, it's the support functions.
“It’s every single department across all the different challenges of different types of circuits and conditions that we've had over the course of the year.
“[Also] reliability, our partner Honda giving us a great product for the year.
“So it's a combination of all those aspects [that] have come together.
“It’s just been the most gratifying team performance that I doubt we'll be able to achieve again statistically what we've done this year.”