Colin-
Sorry to hear about your mom. I hope she recovers quickly.
I, myself, am going to have an AWD wagon as my next car. I narrowed it down to either a Legacy GT wagon, or a Volvo V70. I would likely go with the Volvo because they have more power. I think they are better looking, and seem to have been built with more quality than the Subaru.
If your mom liked her Volvo, why not stick with Volvo... seems pretty logical.
Just my thoughts.
Mike