Earl's right, your soon-to-wife will probably never understand your "problem" with the SVX. Trust me I know from expirience. I even mention anything Subaru related now, and she just says no and walks out of the room. I still don't know how I convinced her to let my buy the SVX, or how I'm going to convince her we need a new Forester XT.
If your soon-to-be is asking these sorts of questions before she even has the ring on her finger, it may be time for you to get your priorities straight.