I've noticed on the SS gauge cluster that the tach is blue to about 6k, with a blue line crossing at about 6250 RPM, then it is red to 6600, then red hashed past that. I am fully aware that the red hashing at 6600 is redline, but what about the area between 6250 and 6600 that's red, and what about the blue line crossing at 6250??? My guess is that it may be the optimal RPM to shift at for the 6-speed... Any other guesses?
Sorry about there not being a pic for reference, but it's on the new camaro site listed below and it's the last picture in the set.
http://www.chevrolet.com/allnewcamaro/#camaro=photos