This has already been mentioned elsewhere, but that "267 miles" when fully charged could very well be a large rounding error. Depending on how you round the percentages, the range calculation at 100% could even be as high as 320 miles. And this may not even be the range topping trim.
A recent video of a Cybertruck walk-around accidentally revealed the electric pickup's projected range. The prototype in question still shows the remaining battery and range as a percentage, but its navigation prediction allowed internet sleuths to calculate the estimated range.