Porsche

I read in car and driver the regular turbo cabriolet does 0-60 in 3.8 sec so i was wondering how fast the turbo s could do it with any extra 29 horsepower?http://www.caranddriver.com/shortroadtests/8415/porsche-911-turbo-cabriolet-page2.html

Http://www.albeedigital.com/supercoupe/articles/0-60times.html