Not sure which 2006 BMW Z4 Windshield Shades & Covers are right for you? We have over 69 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Charles B from Longmont, CO said, "I would have marked this excellent for the BMW Z4 shade, it fits perfectly. However, the Saab 9.3 sun shade does not have the cutout for the mirror. I am wondering if I got the wrong item. It was labeled with "SB" on a tag, but the cutout is nbot there. Otherwise the size fits."