Hi Paul,
Good read on your car buying decisions, I don't believe I have seen one on the road and I will keep an eye out for one. The side profile has a bit of Porsche Panemera in my eyes from the pics you have posted of the one with 19" rims in grey.
It's nice to have a change and I guess the fuel costs on an M3 get a bit painful on a day to day basis. I wonder if your car may come in a bit early as VW group give long lead times and sometimes they come in quicker. When we ordered our Yeti I was quoted 5 months from a few dealers, when we ordered it came in about 10 weeks but other Yeti's ordered at the same time took 5 months for the dealer to get them in.
Look forward to hearing your thoughts when you get it.