Hey SK, hope you are fine and well, have been following your Concordia thread, great job my dear.
Regarding the question at hand, can only apologize as I have no idea about the diff ratios, only know one thing and that is "even EVO is not fast enough"(H)
Since I currently have a manual Evo and had an auto one in the past, can tell you through first hand experience that while cruising at 120 on M2, manual Evo maintains 3300 rpms and auto had 2750 rpms only. If that helps,,,,, I am happy, anything more than this,,,, I am sorry for being that much ignorant