Re the GOM comments - again, it was a very early iPace that I test drove. Maybe (hopefully) the GOM has been improved as part of the software updates. I know that one of them in particular (19B...?) was concerned with capacity estimation and was widely reported to be a Good Thing. The car I drove was on 17.something-or-other so was much earlier.I had read lots of reports about the range of the I-Pace and it was one of my main concerns to be honest and had the car not been available at a cracking price at the time I might not have got it. What has surprised me is that the range display seems to be very accurate so the opposite of what you found which seems odd. I drove a Tesla in the USA as a company car for several months and the range display on that was a complete joke and most definitely could not be relied on for anything and made me wonder why they bothered to include it. I understand that the guessometer thing has come about because these displays are not accurate but my experience with the display on the I-Pace has been that it is very accurate and seems to adjust automatically as the weather changes to maintain an accurate display. It is one of the things that has impressed me and given me confidence in the car as I was used to that bottom clenching experience in the Tesla when it seemed to just lose range for no reason at all it would even lose range when just parked up for a few days.
I do not use the performance of the I-Pace mainly as we do not drive anywhere where we could drive fast even if I wanted to but the acceleration seems very similar to the Tesla and I would be hard pressed to say which was quicker without looking at the numbers in the brochures. The Tesla felt quicker from a standstill but the I-Pace feels quicker when overtaking. The I-Pace feels a lot more stable on the road than the Tesla and just feels easier to drive somehow. The I-Pace is also nice and quiet inside where the Tesla was really noisy at freeway speeds with loads of very intrusive wind noise that was enough to need the stereo to be turned up a lot.
If the Audi had not had those teething troubles and had been available to me at the same price as the I-Pace in the specification that I wanted then I would have preferred it if I am honest as I have always loved the way that Audis were put together and finished.