The problem with your shop is that in 0 TO 100.....you set a price for an item...BUT when I visited the shop......U quote much....much higher price!!!!!!
It's not about Airtrek but more in general. My Airtrek comes with clear windows (local USF car), but I've tinted the rear doors, rear side panel and rear windscreen 75% tint. Using it for 4 years now, no problems...