I really hate how a proper race track gets called a "Road course".
Road course implies that a circuit has been laid out on public roads not within a city. Isle of Man and Dundrod are Road Courses, while something like Long Beach, Toronto and Monaco are Street Circuits.
Watkins Glen, Silverstone and Suzuka are Race Circuits/Courses (I prefer to think of Courses as for Horses and Circuits for things with more than 1 Horse Power). They aren't laid out on public roads, and are designed for racing, so of course it should be a Race Circuit
These "Rovals" are just Infield circuits on an Oval, where Roval is at least a catchy term for it.
All these tracks are "Racing circuits/Courses", which they come under the banner of, just with different types. But calling a permanent circuit a "Road course" is definitely a misnomer.