"Extended Range (all trims, except of Platinum): 350.2 mi (563.5 km) "
Then you are getting better than the EPA. Which is what I had been arguing about in another thread that people said I was being naive. 350.2 miles on a 131 kwh battery is 2.6 mi/kwh. If I do the same as you in the Mach E, I'm constantly above 4.0mi/kwh.