Sebastian Vettel will be aiming for his third win in succession and his seventh of the season in Singapore next weekend - although he knows it won't be easy as the Marina Bay Street Circuit is something of a 'killer'.

Vettel heads into the final seven flyaway races with a 53 point lead in the Drivers' Championship and will be the favourite again in the 'Lion City', a race he has won twice in as many years.

"My wins in 2011 and 2012 were the best memories I have in Singapore because I think it's one of the toughest races of the year to be honest, so to win is an amazing moment and you feel you deserve the champagne!" said the Red Bull pilot in the countdown to the 13th round in the 2013 F1 World Championship.

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"It's a very long race; the full two hours so the race just seems to go on forever. The circuit itself is a killer because there are so many bumps, there's no room for mistakes.

"You tend to see the most passes into Turn 8, and then next common is using DRS into Turn 7."

"It sounds unusual that we stay on European time while out there but because the race starts at 8pm we have to try and stay on European time as much as possible, to make sure we're alert later into the night," Vettel added. "I get up at about lunchtime and have breakfast at about 2pm because that's 8am in Switzerland. It is a bit weird to have lunch in the evening and go to bed in the early hours of the morning. But we've done it for a few years now so it feels more normal than it did the first time."

Team-mate Mark Webber meanwhile agrees the event is a tough one, especially the final sector: "The last sector is probably the toughest [bit of the circuit] to get right, it's a very demanding last sector and the rhythm is very important over the bumps and the curves. You need to get the last sector correct," he confirmed.

Like Vettel though, he too has done well in Singapore, and agrees that finishing on the podium is the best reward after having to tackle a grand prix in 30-degree heat and 70 per cent humidity: "Singapore is a long and hot race and so being on the podium there is a pretty good reward. I finished on the podium in 2010 and 2011, so both of those were special moments for me," Webber added.