I have a few friends with the Matrix/Vibe and it seems like a great car. It's not going to make the criteria for the size (too small) and I'm thinking slightly more upscale.
I like the Fit, and she thinks it's cute, I had ruled it out as too small, but its probably worth investigating just cuz it seems like a neat car, I'm guessing rear seat room is going to be small though.
I had ruled out the Mazda 5 as too "mini-vanny".
I had never thought about converting the rear seats on a 530i sedan, I guess I'd have to find the seats from a wagon and start swapping...I wonder if the floor plan is different enough to prevent swapped in wagon seats from folding flat(?)
An 05-06 Mazda 6 wagon with MT is sounding like a winner, now I just need to show her a picture and see if it meets her inspection criteria...
I also walked past a Saab 9-3 sedan today and the back seat was bigger than I expected, I may need to look at the smaller Saab 9-3 and the BMW 3-series and see if they really are too small or if its all just in my head.