Bought from Marshall BMW as an AUC in Jan 2018. Was under warranty until Jan 2020. It had a full service with them in Dec 2019 (2 year intervals). 94,040 miles right now. MOT to Dec. It needed the headlights adjusted due to the new springs but otherwise a clean pass.
Silver & black - obviously
19" wheels, all four tyres plus front discs/pads were replaced by BMW when I bought it so all have plenty of life left
Wide screen nav & updated to 2020 maps
Bluetooth & USB
Adaptive headlights (which are brill, it's the one thing that I really miss on the 7)
At a push it'd do 50mpg on my old commute if I concentrated, mid-40s are no problem at all. I have a spreadsheet of the mileage on every tank of fuel I put through it over two years

It's been extremely reliable. Only two things went wrong - the windscreen washer pump, and a cracked rear spring. Both were covered under warranty. BMW would only replace one spring, not the pair, so I fitted a full set of Eibachs when it came back. I still have the OEM springs and can put them back in.
No longer needed as I bought a 740d just before Christmas and this one's not been used since.
I'll do more pics if anyone is serious. It needs a wash first.