Red Bull Racing team principal Christian Horner hailed Sebastian Vettel's World Championship success a fantastic end to an "unbelievable" season for the Red Bull team.
Vettel clinched the title with victory in today's Abu Dhabi Grand Prix because rivals Fernando Alonso and Mark Webber could only finish seventh and eighth. Horner paid tribute to the work of Vettel, Webber and the rest of the team, which had already secured the constructors' title in Brazil last weekend.
"It's unbelievable," he said. "It's been a very emotional week for this team. I'm just so proud of the team. It's just an amazing feeling to be double World Champions, it's the icing on the cake with the drivers' [title]. This team is the best team in the world.
"Sebastian, it's the first time he's led the World Championship and he's done it at the last race of the year. Unbelievable. A great job, he drove a perfect race when the pressure was on. He has had ups and downs, he's had bad luck, he's had some mechanical problems, some engine failures but he never lost his focus and belief – and now he is a champion. A great season.
"He's quite a remarkable character; he was the coolest of all of us. His rise to this point has been huge. He's a product of the Red Bull Junior Team and today he's delivered the biggest trophy in motorsport."
Horner says Red Bull's decision to let both of its drivers compete for the title was vindicated by Vettel's victory.
"We continued to back both drivers equally and it was the right thing to do," he said. "At the end of the day, the best guy has won. There's nothing to take away from Mark. He can also be very, very proud of what he's achieved this year. He has driven well too, the fact that both drivers took it to the last race was just fantastic."
Red Bull's technical director Adrian Newey added: "I can honestly this is one of the most special ones. Last weekend with the constructors' was fantastic. For Seb to do it... he deserved it and it's great to do from the front."