My other car is a MINI!!!!
I'm reasonably certain it's true, and it'd make sense wouldn't it?
I've never seen it mentioned on the audi forums before, but it's mentioned loads on the golf forums about the famous mk4 'left hand pull' and apparently the europeans have a 'right hand pull' too.
I think it's only very slight, like 0.5-1 degree, but enough to ensure that if the car WERE to wonder to one side or another, it'd go left rather than into oncomming.
happy to be corrected on that one, but I've seen it refered to in several places by several sources, so there could be some merit in it.
Grale - caster correction is a case of getting the tracking place to slacken off the subframe bolts, and slide the subframe forward/back/left/right until camber and caster is even on both sides.