Well having been trying to look into things, and getting interrupted a lot here at home, I will see if someone can add a little info into this topic for me. According to some base info I have gotten, the new 6 speed auto found in the Saturn Aura may be a GM transmission at heart. Now my interest is will this transmission, the 6T70 or 6T75 be a possible replacement for the 4T65E in my vehicle? Have not found links or enough info yet to compare properly. Good hunting and thanks for any comments on this.