I bet they don’t. They barely do it with the cars.
While MB has an AMG version of every single car they make (even a frigging R63 minivan + the ML, Gwagen etc.). Audi has hardly any.
A1 - never
A3 - RS3 yup
A4 - RS4 yup
A5 - RS5 yup
A6 - RS6 for the last 2 generations
A7 - not yet, but its early
A8 - nope, never have
R8 - the R8 V10 is basically an RS version of the R8…which in itself is an RS car
The trend used to be to issue RS cars sparingly. i.e. just the 4 and 6 cars. Now that they’ve broadened the lineup we’ll see but they haven’t ever done an RS8 for example. I’d be inclined to think they’d make that before they make an RS Q3 or Q7.