Sorry wasn't trying to have a go at anyone ...
As for range and honestly ... I'm not so sure. I think many cars before release get way less range than designed .. as they tune it and adjust things they get closer to the final range.
The thing with WLTP is that it's a standard, so why not advertise it? If all cars have a WTLP range then it's a figure consumers can compare.
Problem is ... well it's shit. With EV's there are so many factors. I'm willing to bet in the summer I'd get close to 280miles under the right situation - I wouldn't enjoy the drive but I bet I could get it.
Still seems like something is off. Either they truly believed they could get to ~300 mi range or they knew they couldn't but said so anyway.
I don't believe they're so Elon-like that they would plainly fudge what's nearly a 1/3 exaggeration. Maybe they let the initial impression persist once they knew they couldn't meet it - but I believe they earnestly thought they could get to 300 mi/500 km range.
If they truly believed it, then their engineers thought they could get to 300 mi/500 km WLTP and get to near that in real-world driving. Yet, even taking the best case scenarios of what's been reported (17 kWh/100 km = 27 kWh/100 mi), you get to 265 mi range max as an absolute max. Based on my limited experience in very mild weather, I think there's no way I'd achieve better than 30 kWh/100 mi = 240 mi range from 100% as a best case sceenario.
So seems something changed. It's not as bad or meaningful a whiff like Oxford's clinical trials design or NASA O-rings but there was definitely some expectation from the prototype stage that didn't pan out when reality struck.
Interestingly, the I-Pace seems to have had a similar story in development, with near identical WLTP/EPA ranges that under-performed relative to initial expectations.
It makes me wonder if there's some common inefficiency in EV powertrain (inverter, battery management, motor...) that Jaguar, Audi, and now Polestar has that Hyundai/Kia and Tesla don't - and that only reveals itself when they go to scaled development instead of prototype/mules.