> which allows them to not have the normal metal frame around the window. Why did this become a feature? My old Mini Cooper had this and I hated it. Passengers

> which allows them to not have the normal metal frame around the window. Why did this become a feature? My old Mini Cooper had this and I hated it. Passengers would pull on the area they were used to pulling on and often this is where the metal frame is, but in the absence of a frame they pull on the glass and it had a very concerning look to it.