A good SRF is as fast as an ITS car, and the fastest ones are usually a second or two faster than the best S cars.

In that run group, I get stuck in a mass of SRFs since I'm a mid pack S car. I'm faster than them on the straights, but they dive bomb under braking and pass me in corners, in places where I am committed to a particular line.

Running with SRFs is like combat. Not knocking them or their driving skills, they are just very different cars from us.

They have split start the Miatas in the past so I have not seen them, but teh very top SMs are scary enough as fast as a midpack S car........maybe not at the Rock though, we'll see.