I noticed the other day that when I use the memory seat function on my vantage, the outside mirrors don't reset. Only car I have had where this is the case. Is there something wrong or is it just another element of quirky British design?

 

yes. try reprogramming the seat with the mirrors in their proper place. if that doesn't work aston will probably just reflash your software and it will probably work. also, if your software has been reflashed it will reset everything that has not been used in a while. when my software was upgraded my door locks and mirrors didn't work properly and they had to reflash those individually to bring their functionality back.