>>9361872>>9361538>If by mecha you mean giant robot:
Planetes has mecha in it.
Ghost in the Shell has mecha - even giant mecha, but since the giant ones are not humanoid and the humanoid are human-sized, this somehow excempts it?
Kino has a talking bike.
Seriously, all those shows except Dennou Coil and Lain would be very welcome in /m/. Particularly Crest/Banner of the stars, since they have space ships.
Haven't seen Scrapped Princess and Now and Then, Here and There.