I bought a Wind Restrictor
http://www.dynamicautoconcepts.com for my SLK that was a full size one that went all the way across both roll bars and I absolutely loved it. Then when I got my Crossfire Roadster I purchased one but because of the curve of the back panel it only covers the area between the roll bars. Not quite as good at removing the wind from the back of the neck, but oh does it look good.

So then I decided that I absolutely had to have a custom one. My other ones were lighted but this time I also got the optional brake light/dimmer control. I will be installing it this weekend.
I love the looks of these things and they are very high quality. I get positive comments on them from just about everyone.
Sheldon