Car designer - drivetrain

so i just went through a lot of stuff in my head, some books and wikipedia ..
1. will there be a choice in differentials? eg. open, closed, limited slip etc.
2. what drive choices will there be? usual front-front, front-rear, front-awd, mid-rear and rear-rear? or something more exotic like, rear-front, rear-awd, mid-awd (not sure if possible in terms of space), mid-front?
3. in case of AWD & 4WD, will there be diffrences like they are in real life? eg. 4WD uses a transfer box which in terms reduces engine effiency and provides quite a power loss to the road
1. will there be a choice in differentials? eg. open, closed, limited slip etc.
2. what drive choices will there be? usual front-front, front-rear, front-awd, mid-rear and rear-rear? or something more exotic like, rear-front, rear-awd, mid-awd (not sure if possible in terms of space), mid-front?
3. in case of AWD & 4WD, will there be diffrences like they are in real life? eg. 4WD uses a transfer box which in terms reduces engine effiency and provides quite a power loss to the road