Comma question (Independant clause)

[vcolts]

Ex:

Company A has one car, and company B has three.


Q. Is the red part considered as an independant clause even though it is missing the word "cars"?

If it is then putting a comma is correct?

*I am aware that the comma can be omitted because the length is short but I wanna know if comma can be used there (because the clause in red is an independant clause).

Thanks in advance.

[5jj]

Company A has one car, and company B has three.


Q. Is the red part considered as an independaent clause even though it is missing the word "cars"? Yes
If it is then putting a comma is correct? It is acceptable

*I am aware that the comma can be omitted because the length is short but I wanna want to know if comma can be used there (because the clause in red is an independaent clause).

5