https://insideevs.com/news/586646/how-tesla-wins-on-epa-estimated-range/amp/ https://insideevs.com/news/586646/how-tesla-wins-on-epa-esti... There are two test

https://insideevs.com/news/586646/how-tesla-wins-on-epa-estimated-range/amp/ https://insideevs.com/news/586646/how-tesla-wins-on-epa-esti... There are two test formats. Tesla chooses the 5-cycle one which is more favorable due to including and weighting more low speed tests. Other companies use the 2-cycle which weights highway driving more (which is what you do when going long range). Turns out the 2-cycle is more representative of driving where range matters.