So far the HVAC system is the best of any car I've ever owned with flexibility for fresh air ventilation, generous fan volume (quiet too), and versatility if you bother to learn and understand the setting options.
But no info- belt drive or electric compressor anyone?
I don't think it happened with me because many times when I throttled up to pass some car nothing happens or my blower did not stop my ac fan, but if anyone facing some issue then they should be done the required ac repair of their car ac.
the hvac, is an intelligent and dynamic hvac, like the alternator. in case of max acceleration or max power request this 2 dynamic systems don't stop their functionality, the power lost is very little in this 2 componet, the torque is really great on 2.0 turbo and 2.9 turbo