We have a decade old Mazda 2 that gives you an estimated range for your tank based on the average of the last several miles you drove. With all the data Tesla has available, it not being able to give anything other than EPA range is pathetic. A simple calculation based on your last trip range and your current trip range would get you way closer that 20-25% off and Tesla can’t be bothered, or intentionally doesn’t use, something so basic. Not to mention that Tesla should be able to learn that you commute Monday through Friday in stop and go, and take a couple highway trips on most weekends, and calculate a close to dead accurate range, but decided it looks better to give a range estimate that is basically a lie.