V

[NIck Miller]

Hard to say.  The only two things I could think of would be the excess
underhood temperature somehow affecting the Belt.  Rubber is not a fan of
heat.  However, I'm not so confident on that one.

The only other idea would be the increased power output under spirited
driving putting excess stress on the belt, stretching it or fatiguing it
early, which is a possibility.

Better yet, maybe Audi really has 0 desire to replace a blown up RS6 engine
and would rather they all be over-maintained.  30kmi is pretty short.