I was lucky when pricing of diesels plummeted in Germany and found a couple of years ago a barely used, 5000km, BMW company owned F13 640dx, priced really low (60% from new). It was loaded with almost every option available, except night vision and B&O. Some of these options are probably standard in the US, but over here we pay for each of them.
If I were to buy one again, some that I’d definitely want:
HUD
Comfort seats w/ lumbar support
Navigation
HK (it’s OK)
Surround view and PDC front & rear (big car, don’t want scuff marks)
Adaptive LED
Pan roof
Dynamic dampers and active suspension
Speed limit info
Heated seats and steering wheel, park heater w/ remote control
Alarm
These make it feel special:
Soft close doors
20” 356s
Driving assistant plus, active cruise control, lane change warning
Keyless entry
Leather dash
Garage opener
...and these I could do without:
Ambient light
DAB (does not work in Finland)
Concierce service (not supported in Finland)
Internet (sloooow)
RTI (does not work in Finland)
...and all other BMW software, none of them really useful. I prefer to use my phone instead.
Feeling really spoiled with this car. Unfortunately our local BMW does not support many of the German net services or want an annual fee for them so they are mostly useless over here - Local wants to sell bread and butter BMWs, with no services, instead. And my wife’s Volvo really excels over BMW in that area