There are many "tricks" to reduce range.
- turn on heater
- turn on seat warmer (trophy model)
- turn on dimister
- turn on A/C
...
In another word, there many ways for comfy, which come with cost.
The car was draining 8 A current in parking mode. That is 2.7kW (=340v * 8A) power usage without moving. Car could consumed 21kWh for 7.44h. For LR model, the usable battery capacity is 68kWh. 30% battery would be consumed on heating.
Current range estimation is 37mls@18%. It would be 37/.18 = 205mls@ 100%. If it was in Summer, efficiency would be 30% higher without using heater or A/C. Efficiency could be 2.7mls/kWh * 130% = 3.5. Range would be 205*130%=267 miles. It is not far away from 273miles official WLTP range.
You took 7.44hour driving 138.9 miles. I guess you just enjoying sitting in a comfy warm car for most of time? Bad traffic?