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Red Bull team principal Christian Horner says 2015 will be the start of a new cycle for his squad following the announcement that Sebastian Vettel will leave the reigning champions at the end of the season.
Vettel is expected to join Ferrari for 2015 with his place at Red Bull taken by current Toro Rosso youngster Daniil Kvyat.
"Sebastian informed us of his decision last night," said Horner. "It was emotional, but we can look back fondly.
"I know him well on and off track and you can see he's had a lot on his mind recently; inevitably you don't take a decision like this lightly, but it was last night that he sat down with us and told us for the first time. All I can do is wish him the very, very best for the future. He'll still be close to our hearts here at Red Bull. but as of 1 January he'll be a competitor.
"It's the end of a cycle of course, but inevitably this was always going to happen at some point. It's also the start of a new cycle, Daniel Ricciardo] is doing a great job this year and has got three wins already – he shows the new strength we have coming through and we're excited about the prospect of Kvyat lining up with him. They're the next generation."
