Im fitting a BA GT rear wing on my xr and need the measurements or a real good close up photo of anyone who has one on there car, so i can fit it with proper alignment. I searched google images and they're arent many good pictures to judge from.

The Xr boot flatens out at the end (where a bobtail spoiler can be fitted) and i want to know how much the overlap over the flat bit there is.

Any help would be great