I'm curious...
Having the 3M fresnel lens (alas no longer in production) plus the Parktronic makes a world of difference!
How is this arrangement different, or rather, more obstructive than what we have currently in the W163. Don't the rear headrests not block anyway? I haven't found this to be an issue after removing the centre rear head restraint.
Having the 3M fresnel lens (alas no longer in production) plus the Parktronic makes a world of difference!