What "black car service" actually means
"Black car" is a North American term for pre-booked, professional ground transport in an unmarked luxury vehicle — no roof light, no livery, no branding on the doors. You reserve it ahead of time, you know the price and the car before it arrives, and a licensed chauffeur drives it. That is the whole category, and it is why companies default to it for anything involving a client.
It is worth separating from the two things it gets confused with. A taxi is marked, metered and dispatched on the day. A stretch limousine is an event vehicle. A black car service in Toronto sits between them: the discretion and reliability of a private car, on a single trip or a standing arrangement, without turning up to a meeting in something with a light on the roof.
The Executive Limo runs black cars across Toronto and the GTA, on flat rates you see before you book. Common downtown routes are priced below, and anything not listed is quoted from your exact addresses in the form on this page.