Did all st16*\At16 come with rear wipers? looking for a rear spoiler with out the cut out to avoid the rear wiper spindle.. does such a thing exist?
The hatchbacks all came with rear wipers but the coupes did not, so the coupe rear spoiler does not have the cut-out. However, the coupe and liftback rear spoilers are not interchangeable without mods. Might be easier just to slap some bondo on your liftback spoiler.
Do RHD models have the rear wiper on the same side as the LHD? If not, you can maybe get a middle section from both, cut them in half and make a new one from the "clean" parts. If it's possible to attach them smoothly.