Sebastian Vettel (Pic:Getty)SEBASTAN VETTEL stretched his lead in the world championship with his second successive victory in Malaysia.
For the first time in his career he won at the same circuit in successive years.
“He was the coolest man here today,” said boss Christian Horner.
“It was a really mature drive by him today.  It was his speed that gave us options.”

“He’s done 64 GPs and is still learning and getting faster.”
While Jenson Button got the better of his teammate who started ahead of him to finish second.
And the man from Frome moved to second in the world championship as well, 24 points down on the German.
After spending most of the race chasing the German’s rear wing Lewis Hamilton was the victim of problems that were not of his own making.
Losing three seconds in the changing of his front left tyre was enough to see the other McLaren driver slip ahead into second after the final scheduled stop.
And Hamilton’s luck failed to turn.
He was hit from behind by Ferrari rival Fernando Alonso 11 laps from home.
The Spaniard careered into the rear right tyre of the McLaren while the duo were battling over third place.
It wrecked the red racer’s front wing and forced him to pit a fourth time.
Hamilton appeared to have escaped damage until Heidfeld sped past five laps later to take third.
And a lap later the McLaren skidded off the circuit as the tyre started to deflate, necessitating an unscheduled fourth stop for a replacement.
What looked like a safe runners up spot early in the race – and the continuity that the 2008 champion sought – became a distant seventh.
“That’s racing I guess,” said Hamilton.
“I don’t have too much to say. The problems started when I was stuck behind Heidfeld.
“I got squashed in turn 1 between Jenson and Heidfeld.
“Through the race my tyres went off, we pitted too early.
“The problem in the pit stop didn’t help. It was one of those days.”    
“It’s one of those days and we just have to take it on the chin.”
Heidfeld took third, his first podium for his new team and the second in succession for Renault.
But to get it he had to fight off the attentions of a brilliant fight back through the field from Mark Webber.
The Australian, fifth at his home race a fortnight ago, was fourth, plagued by KERS problems for the start of the race.
Felipe Massa was  fifth, Alonso sixth and Hamilton seventh.
Kobayashi won his race-long battle with Michael Schumacher, three times a winner here, for eighth with Paul di Resta continuing to shine.
For the second race in succession he finished 10th and in the points – impressive for a rookie in an unrated team.
Vitaly Petrov, third in the last race, was in the headlines again as he earned the nickname the rudderless Russian.
This time when his steering wheel came off in his hands several laps from the finish and he car leapt five feet into the air but was lucky not to overturn.
And the benefit of the tinkering with the rules appeared to reap rewards to a certain extent as there was no lack of drama behind the faultless Vettel winning for the fifth time in six races.
But the world championship is looking a close run thing behind the 23-year-old German.
Although he has nearly double the points of his nearest rival, Button, just 11 points separate the next seven drivers.