I'd make it RACE well.

Some are great drivers track, but bad racing tracks.

Lime Rock, for example has enough areas that can be driven slightly off line where it won't kill your time, which them become gtreat passing places, like the long trail braking entrance to big bend. And having a turn opposite that turn after it means that you can sometimes hang on the outside, but be inside for the following corner. That makes for great racing.

Tricky turns with some options for getting it " right" in front of looong straights are key to.