adrenalin

Not a fan of a sunroof on a stang. Just looks out of place. Had a T-roof on my 77 and loved it. Wish they would come back out with a T-Roof option.

Overboost

T-tops were cool, but the tooling, crash testing, and increased cost to modern crash test/safety standards will keep them from coming back.

On the other hand, a glass roof with vent/something similar to Magic Sky Control would be pretty slick.