I found a wind deflector that will work on my 92 vert and its a OEM BMW E36 model

[Todd Black 88]

BMW made one for the e30 cab that fits perfectly. There is also an aftermarket one for the e30.
I hope you did not pay much for the e36 one.

[chicagolande30]

I bought a OEM E36 wind deflector on EBAY that needs a custom bracket to make it fit perfectly but it looks ok now since its all OEM on the car at the moment so it not flush all the way on the back seat . I have a friend who is a machinist that will make a custom bracket for the deflector . :)