In one of the latest tests, Out of Spec Reviews’ Kyle Conner checks a brand new, 2022 Tesla Model 3 Performance in a stock wheel configuration.
As usual, the car was tested at a constant speed of 70 mph (113 km/h). Kyle Conner assumed that it has about an 82 kWh battery pack, out of which about 3 kWh is a buffer, so he ran the test basically to a point at which the car's display showed 79 kWh consumed (there could be a few "electrons" still available, but it's not expected that a typical driver would normally go so low on state-of-charge).
The result of the trip is 280 miles (451 km), including the last miles covered around the fast charging station at lower speeds. The average energy consumption displayed by the car was 282 Wh/mile (175 Wh/km).