In regards to the Quattro system, the Audi website blurb states that -
"It ensures that engine power is permanently distributed between the front and
rear wheels as and when required."
I understand that when the front wheels loose traction, then power will be sent to the rear wheels to help it out.
However, just pottering along on a nice dry day, in a straight line...what is the percentage split of power between the front and rear wheels...? Would it be 100% front and 0% rear...? Or is there a minimum percentage sent to the rear wheels at all times...?