S variant of the Q5 is expected to follow a facelift of the model coming sometime next year.

With a facelift coming on the Q5 sometime next year, Audi seems to be prepping a Q5 S variant to add to the range too.

Spied here testing in the Alps, this Q5 S prototype is sporting the quad-piped exhaust system characteristic of all S-variants plus Ingolstadt plates.

What will Audi see fit to tuck beneath its hood?

Perhaps the Q5 S will simply use the same power plant as on the S4 - that would be a supercharged 3.0-liter V6 with 333 PS (245 kW / 329 bhp) and 440 Nm (324 lb-ft) of torque.

We expect the Audi Q5 S to debut sometime in late 2012.

Gallery: Audi Q5 S spied testing in the Alps