Early macs had the best floppy drives. Motorized on both eject and "inject."
Later Mac floppies (after 1992 or so) only had motorized eject. You could tell because there was a cut-out to allow you to force the disk deeper into the mechanism for it to catch the disk.
I don't think the insertion was actually motorized, though, I think it just had some way of grabbing the disks easier. Not sure how exactly that worked.