Assymetrico's - they seemed to wander even when brand new, and have gotten worse as they (quickly) lose tread depth.
My mechanic drove it and his opinion was that the tires were 'blown inside' (i think thats what he said) and we should get them off the car ASAP.
I believe that we will have to accept a Pirelli product as part of the warrenty agreement, and i'm going to take a long look at the ATR's.

Thanks to all those who participated in this thread.

I wouldn't bother with the ATRs (= All-Terrain Radial) unless you do a fair bit of gravel/dirt roads, mud or off-road. They are a compromise tyre rather than specialist road tyre. They suit me but that's because of where I live.

FSETH:
I was running the Zero Asym's.
The wandering got worse as the tread wore down - my mechanic drove it and said he thought the inner plies were blown (???).
Still waiting for Pirelli to commit to some kind of recompense.

Sorry about the double post - i didn't notice we had gone to page 2.

(Noobs - shakes head)