it fits pretty good actually, but if you stick with silicone. I stuck it first with 3m tape but then it was raised a little bit, with silicone fits like a glove.

It was holding fine as I just sold my car but you should be ok

How do you like the Sunline carbon roof cover? Could you let me know how the fit is and also how wear and tear is going with it. My Z has hail damage and I think it would be easier for me to get one. I just need to find some way to get one to Germany without paying an arm and a leg. Thanks