Did you try looking over your right shoulder out the rear passenger drivers side window? I sat in the basic Techno version and there was no visiblity for me, the large headrest blocked any view..
Would have been a problem as last week when I was backing out of an Asda car parking space a woman was walking straight into the back of my car without looking. If I hadn’t been able to see her who knows what would have happened.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!