#1 Ranked Wind Deflector Windscreen Windstop Windblocker, Lexan, Compatible with BMW Z4 2002-2008

I didn't pay very close attention to the fit when I first got it, just installed it and drove. There was a noticeable reduction in wind turbulence but still too much coming through under the windscreen - there was a 1.25" gap under the screen to the body/ interior trim which I assumed was by design so I proceeded to fill it in myself (covered in carbon fiber vinyl) but I then figured out this is not what is shown in the product pictures. Then I realized that one side, at the center of the top strap slot, it's 5/16" lower than the other . . . and the bottom edge of the screen does not follow the curve of the car (it's about 3/8" higher where it starts to dip at the center than it is at the outer most ends.