You should add $600 for dark-finish wheels to help make your ATS-V visually distinct from the lower-trim ATS models on dealer lots. $2,000 more gets you the automatic transmission, which is probably what most buyers want in the premium sports sedan market.
The awesome Recaro performance seats seem worth the $2,300 up-charge, especially if you drive like me. There are driver aids on offer, too, but none of them felt particularly advanced or necessary so hold off on those.
All in, that puts the price somewhere between $68,990 and $70,215, depending on what color you pick.