They are among the best in class when it comes efficiency so I don't understand where they are falling short. I've rented EquinoxEV(2024,Model 3(2022), Mach-E(2021 non heat pump) and Bolt EV(2023) for roadtrips and it seemed as if all except Mach-E were pretty good on their estimates. I guess I need to measure miles very closely. Maybe they were all just falling short and I didn't realize. :/