Carl Edwards won the Southern 500 at Darlington in 2015, a race in which NASCAR experimented with the low-downforce aero package.
Carl Edwards won the Southern 500 at Darlington in 2015, a race in which NASCAR experimented with the low-downforce aero package. Terry Renna AP
Carl Edwards won the Southern 500 at Darlington in 2015, a race in which NASCAR experimented with the low-downforce aero package. Terry Renna AP

NASCAR rolls out aero package for Atlanta Motor Speedway’s QuikTrip 500

February 27, 2016 04:11 PM