Red Bull chief Christian Horner said it would be "almost impossible" for his team to better this season's performance after they won Formula One's constructors' championship on Sunday.
Defeat at last week's Singapore Grand Prix ended Red Bull's hopes of an unprecedented unbeaten season and Horner thinks what they have achieved may never be repeated.
"It's a golden moment -- for the team to do better than we're doing I think it's almost impossible," he said.
"We're riding a wave and of course we want to try and ride that wave as long as we can, but Formula One is a fast-moving business.