hey, the window was 130.00 shipped from emiata.com just google bmw 328ic convertible window. i have had the window on for two months now and its just fine! it went in so smoothly i couldn't even believe it, only thing that i strongly suggest is using a different fabric glue to glue down the outer part on the window once you see the directions you would know what i am talking about, and you need to buy a replacement gasket for the outside, bc i was not able to get my old one back on and i have not been able to get to the dealer to buy the piece so i did not do it yet, but other than those two set backs its great! i am supper happy! also when you do the gluing make sure you keep it out of the sun until its dry maybe do the replacement at night and then the glue can dry, bc i think that might have had an impact on how the glue dried. any other ? just ask!