You must know that is BS? Even a 45kWh car can do well over 100 mile journey in cold weather, with sensible driving. FFS I did a week with a Zoe 22kWh in winter and coped on long journeys (see blog below). Yes it needs a bit of planning and less drama (paranoia?) but it can work fine.So that 161 miles might only be 50 miles in reality
Presumably you have home charging? For best range when heading on a long journey charge the car so it ends an hour before you leave so battery is a bit warmer and then precondition the cabin while plugged in. Both of those will help range. Switching off A/C is pointless, it is cabin heat that can use quite a few kWh especially as you don't have the heat pump - hence warm car on mains.
Finally, don't assume that ZapMap reports are correct unless reported by a few different users.
Zoe Chargemaster Experience Week
I currently have a Zoe 22kWh (I was expecting a 40kWh!) for a week and am doing a blog. My experience may be useful for someone thinking about getting one. However, having driven EVs for a while in UK and USA my approach may differ from a newbie ;) Zoe Experience Week