Bloomberg - Are you a robot?
Lordstown Ohio was capable at one point recently of 5,000+ a week production, Oshawa 7,000+ a week , and Detroit-Hamtramck about 4,000 a week. Lordstown or Oshawa could probably host a MY line.
Fremont is getting up there numbers wise, I'd actually bet now, because of the higher ASP and vertical integration, that the Tesla Fremont plant is the highest producing plant in North America in terms of dollar value added, perhaps by a considerable margin as well.
I'm not sure the GM production numbers are equivalent to the Tesla production numbers. Tesla is way more vertically integrated and does more than just assembly. (Which my understanding is that these are mainly assembly plants.)