what tesla currently produces from price point is a luxury car.
I believe share of luxury new cars in US maybe around 30%
worldwide I don't know but it would wise to assume half of that. so 15%
You calculations assume they will produce 14 millions cars
So they will take whole luxury segment
I think the best case scenario they can take 20% of the luxury segment. So their theoretical limit is likely about 3 million car at current price point
I am not sure they will produce 14 M cars, I just stopped doing the math when the 10% of current world market is reached.
While price wise I can see how others call the cars luxury, from a comfort level they are quite different, I would say they add value to mid market cars, function at a performance car level.
Even if their limit were to be 3M, if valued in the market as a growth tech company the potential market cap is good.