We did some testing on a few of our cars yeaterday in the 94 degree heat at high noon, we try to give real world numbers "Every day driving conditions" not just perfect conditions or better conditions like cold air and night time testing. We did 4 back to back passes with no cool down the forth was the best with the lowest mph of 120 and change, here is the video and yes this is a 6 speed car.
http://www.moderndaymusclecars.com/gto/videos/mdmc11.49.rm
Cheers
MDMC
http://www.moderndaymusclecars.com/gto/videos/mdmc11.49.rm
Cheers
MDMC