No wifi hotspot in UK spec Golf 7's.
There are only 2 SD card slots, but the maps are on the hard drive, so don't need to reserve one of the SD slots for map data. Maps are updated by downloading onto SD card and loaded onto the Pro. This card can be removed after the data is loaded, and reused for something else.
Voice recognition is included as standard with the Pro so, if you wanted it you, don't need to pay any extra.
The 10GB hard drive is for Music & Video. The actual hard drive size is 40gb (if my memory serves me correctly) the remaining space is reserved for map data,POI's and car software. The map data alone for Europe on the Pro is about 17-18gb. On the 5.8" Discover it is a lot less.
The google Satellite views are from the versions with carnet installed. (Not available in the UK Golfs. (But maybe available in the hybrid/electric Golfs.)
Hope that makes thing a bit clearer.