I have as many street cars, trolleys, RDC, doodlebugs and subways as I do train engines.
So yes I would buy a command street car or a conventional trolley with upgraded sounds.
I would suggest just making them in different colors and then contracting with a decal maker so the modeler could make it whatever city/line they want. That way we’re not restricted to just one model that fits our layout.
Chicago had every paint design imaginable for streetcars. I’m sure other cities were the same.