I have a MY Performance first, the most I have ever seen is 281. I don't think the range estimates are really accurate honestly. I am at 264 now, lowest I have seen is 260. I seem to fluctuate between 270 and 260, its gone up and down in that range about 3 times. The one thing I found though, when going on long trips, the estimated range is always off by 3-5% once I get to my destination... So I think the computer is conservative by nature, which is probably good. That said, I don't believe Tesla's public numbers, 290 on a Performance would be tough, would have to be super optimal conditions. I think 280 is more likely the true number. At the end of the day though, you can control this yourself some by not pushing the fun pedal as much
. I have had this car over a year now, it really bothered me for the first few months, now I don't care.. give yourself some time to adjust to it and you will feel the same eventually.