changing the world go to cnn.com/heroes. back with more of t.i. after this. allergies? chlor-trimeton. hey, one dose of this, six hour relief. chlor-trimeton relieves itchy, watery eyes and sneezing for 12 full hours with less drowsiness than benadryl. it does all that? chlor-trimeton. less drowsy relief that lasts 12 hours. 0 to 60? or 60 to 0? [ tires screech ] how a car performs in a quarter-mile? [ engine revs ] or a quarter-century? is performance about the joy of driving? or the importance... of surviving. to us, performance is not about doing one thing well. it is about doing everything well. because in the end... everything matters. performance without compromise. that is what drives us.