Why does the Audi A7 have a sunroof that doesn't fully open?

I've noticed that the sunroof on my Audi A7 only tilts open, but doesn't fully open like other cars. Is there a reason for this design?

The tilt-only sunroof design is intended to reduce wind noise and improve aerodynamics while still allowing for ventilation. It also provides additional headroom inside the car.

One possible reason for this design is to make the car more structurally rigid, as a fully open sunroof could weaken the frame. This could also improve safety in the event of a rollover.