I use 3 just because I am too lazy to find the code or copy and paste the other three lines. But I like the lines more.
As others have guessed, I think that in general it will be typed as "Model 3" and the car itself, as well as promotional/marketing materials/shirts, etc... it'll be "Model ≡"
You can type it using the special HTML character code & #8801; (no space, but & is being escaped as you can see).
I motion to, from here on and throughout these forums, we call it Model E. Screw Ford. So sue us. Everybody in favor say E!
I like the three horizontal bars in the same style that's found in the Tesla name, I think it shows how important and integral the 3 is to Tesla.
Most of the luxury brands don't want you to remember the model number. They only want you to remember the brand. That's why companies like BMW and Mercedes use very short, unmeaningful, alphanumeric model names. I think Tesla needs to do the same and drop the "Model" part of the name, And use only ≡.
Yup. Just give me the three horizontal dashes. I do NOT want "Model" on it. And "3" would look like a loser German car.