The Hyundai Nexo EV is already at 380 miles, and it’s a real SUV, not a flat-as-a-pancake Model S. It refuels in five minutes, to boot, but is only practical in California. If they increased tank volume by 5% it’d be at 400 miles EPA.
I'll also say that part of the Tesla ecosystem is the self-driving and performance, not just earth friendly.
Also you compared an SUV to a Sedan which is supposed to be flat as a pancake. lol. A better comparison would be the model Y.