`` The new tires are easy to get a feel for . Red Bull 's Mark Webber 's fastest in the second day of F1 testing for 2011 . Tuesday 's leader Sebastian Vettel second for world champions Red Bull . But Brazilian 's teammate Sebastian Vettel session ends after only 17 laps . Lewis Hamilton is second ahead of the launch of the new McLaren on Friday .
Red Bull 's Mark Webber 's fastest in the second day of F1 testing for 2011 . Tuesday 's leader Sebastian Vettel second for world champions Red Bull . But Brazilian 's teammate Sebastian Vettel session ends after only 17 laps . Lewis Hamilton is second ahead of the launch of the new McLaren on Friday .