Mark Webber believes his Red Bull team-mate Sebastian Vettel has achieved something "very, very special" by clinching his third consecutive Formula 1 world championship.
Vettel was able to claim the 2012 title with sixth place in a wild race in Brazil, as his championship rival Fernando Alonso finished second.
"He's in a club on his own now," Webber said of Vettel.
"Very, very special to do it three times in a row.
"Last year was a little more straightforward, this year was a bit more difficult, as was 2010.
"Three in a row is going some, for sure. So I congratulate him, it's a great effort."
Webber almost made contact with Vettel at the restart following the mid-race safety car, before diving onto the run-off.
"I was up nice and high and I was trying to get back into it but I was on the white line and I had absolutely no grip," said Webber, who had previously fallen down the order in a collision with Kamui Kobayashi.
"I tried to go wide and stay away from Sebastian."
The Australian eventually finished fourth, and said the Red Bull had been tough to drive in the conditions.
"It was quite a tricky race for Seb and I," Webber said.
"The temperature wasn't super-easy for us to get into the car.
"It didn't disappoint in terms of drama, did it?"
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