I had mine installed aftermarket, it cost 700-800 bucks roughly. It is electronic, slides out over the top of the car. No leaks, looks pretty much stock. What most of you don't know is that a lot of the sun roofs on cars, are put in after the car is there. Most dealers have a place that they send their cars to get sunroofs, it is cheaper for them then buying a new car, and still having that other one on the lot. The guy who did mine, did it for Mitsubishi, Nissan, Toyota, and BMW dealers. I love mine, it has a lifetime warenty against leaking, including full replacement of anything that gets water damaged! SO I say go for it...the pop up ones are only like 300-500 bucks, depending on size. Hope this helps.