What was your expectation?
None of the range estimates you will see are based on doing 80mpg in during the winter in the UK.
You will use 30% more Energy at 80mph than you will at 70mph.
Elon Musk might have a massive god complex but he has not managed to change the laws of physics yet
My expectation? Well that's a novel twist on the clichéd "you're doing it wrong" line, but I don't think my expectation was unrealistic or unreasonable: it was for a properly useable fast saloon. And by useable I expected a decent range. Did I expect the 300 miles then advertised onthe website? No, because, of course, YMMV (or WLTP as it's now pronounced).
Did I, though, think for a moment that the effective range 90%-10% would in ordinary driving be half that? Not for a second.
Was I a fool? Maybe, but I didn't just rely on the website. I devoured every review: not even the What Car real world stats get close to as low as mine (hence my irritation expressed earlier at what I now know to be the nonsense they regurgitate). I took a long test drive, and I was told 300 mile range, and of course the battery meter was set to miles not % - but even so, it's not my first car, I know predicted range will vary with conditions and driving style. Yet I've never had a car where the predicted range is essentially 100% optimistic. (I've sat in my local SC and heard sales staff tell the same lie to successive enquirers... Oddly enough there's no caveat from them in their script. Tesla's model 3 homepage suggests you can go from London to Manchester on one charge in an M3P. At 45mph maybe. I couldnt. Life's too short)
Did I trawl the forums to ground my expectation? - no. But now I know there are plenty on here (mostly in the USA, it's got to be said) who will blindly deny my experience. I assume they drive at 55mph in a constant 23 degrees c for their 240 wh/m. And did I get out drag, speed, energy charts? Hell no, I was buying a fun car not having a detention.
And it's been fun, in many ways. But is it useable, really, for me, without a regular commute but with occasional and unpredictable longer workday drives? Nah.