SAO PAULO, Brazil - A delighted Sebastian Vettel was emotional after setting a record for the most pole positions in a racing season during qualifying for Sunday's Brazilian F1 GP.The recently crowned double champion secured his 15th pole of the season - the 30th of his career - on Saturday to exceed the record set by Nigel Mansell in 1992.'QUITE SOME TALK'Vettel, 24, was the only driver to better 1min12 with his 1min11.918 and said afterwards he had put all his effort into his final qualifying lap."There was quite some talk about this record and I think the best thing was not to think about it," the Red Bull driver said. "We had a rough start to the weekend and were not 100% happy with the car’s balance but we made the right choices overnight."I was happy with the first lap in Q3 but we knew there was more - I put everything into that last lap.”He or team mate Mark Webber have taken pole position for all but one race through 2011; that was in Korea where they lost it to McLaren driver Lewis Hamilton. Stay with Wheels24 for the F1 weekend.