Black cars aren't limos. A more accurate way to describe them would be unmarked taxis that are dispatched not hailed. What us New Yorkers call a car service.
They have "limo licenses" but yeah, few if any of them are actual limousines in wheelbase / shape. Most are towncars or upscale SUVs.
> Black cars aren't limos.
What's the difference?
Standard definition of a limo is an extended wheelbase and partition between the passenger and the driver. I suppose one could argue the details but that's how the distinction is understood in an NYC context at least.