Does normal seats fit in touring?

[mitch2k]

I'm looking for new seats for my car. My garage has a leather interior from a normal (no touring) E34. Wil this fit in my touring?
I can flip my backseat down to load big things and stuf, but I guess this isn't standard.. So can I still use a 'regular' seat?

[Rigmaster]

Front seats- yes
rear seats- no (they're totally different)