One thing to consider is that you’re not actually driving “an EV” in the sense most people use it.
Your car is a converted commercial van, and you of course pay the “tax” for it – a subpar interior fit, as well as high consumption because you’re essentially moving a shed about. If you’ve ever been in a Caravelle or even a Transit, you know what i mean.
I don’t know whether or not your current consumption is due to a damaged battery or just “normal” (1.7mpkw isn’t outlandish, most people get around 2 to 2.5 in a normal sized EV this time a year), but it was always going to be a stinker with that range. Maybe not in summer, but certainly in winter.
I’m not trying to poop over the car, but i distinctively remember being kinda surprised by the choice as a daily at 140 miles range at the best of times. 50kwh packs in huge vehicles like this are just nonsensical. The inefficiencies in cold weather are known, it now is colder than it was last year (quite considerably so indeed, at least where we’re situated) – i’m not 100% convinced that this isn’t just the weather tax, rather than a degraded battery. Of course there will be some of that too, but you need to deliberately ignore all charging advice to basically ruin a battery within a year. I doubt that you did that.
Prior: SEAT Ateca Xcellence Lux 1.5 TSI DSG MY19, VW Golf GTE PHEV DSG MY23
Current: Hyundai Ioniq 6 Ultimate
Next: we'll see what's available in 2028.