On a previous sports car, an MGTF, i made a windstop and put it in the normal position behind the seats and saved some cash. It looked just like the factory version, but made of mesh and copper tubing.
Not satisfied, i made another from perspex. Again not satisfied as neither stoped the turbulent air and could see reflections of headlights with oncoming traffic if left in place.
The final solution on my previous car was to cut a piece of hardboard into a flat inverted 'T' shape and wedge it between the headrests forward of the normal position and only high enough to see over the top via rear view mirror. Also had a shelf to stop air flow travelling down the back of the seat, as often i could feel a draught around my right leg. Not the traditional place for a windstop but far better than the factory designed position, markedly reduce the draught around the neck. It all eventually ended up looking like;

Have yet to try this on the Zed.
I always find the air curled over the windshield inboard of the windstop, negating its usefullness.
So last few days have tried the Zed with and without its windstop.
Not a vast amount of difference.
So will experimenting, looking for a neat solution for something between the headrests.
Not satisfied, i made another from perspex. Again not satisfied as neither stoped the turbulent air and could see reflections of headlights with oncoming traffic if left in place.
The final solution on my previous car was to cut a piece of hardboard into a flat inverted 'T' shape and wedge it between the headrests forward of the normal position and only high enough to see over the top via rear view mirror. Also had a shelf to stop air flow travelling down the back of the seat, as often i could feel a draught around my right leg. Not the traditional place for a windstop but far better than the factory designed position, markedly reduce the draught around the neck. It all eventually ended up looking like;

Have yet to try this on the Zed.
I always find the air curled over the windshield inboard of the windstop, negating its usefullness.
So last few days have tried the Zed with and without its windstop.
Not a vast amount of difference.
So will experimenting, looking for a neat solution for something between the headrests.

