At some point, I'm going to have to replace my much-loved 5 series wagon. At 14 years of age, it's had a LOT of love (i.e. many, many parts replacements). Yes, indeed, my Fiver has made many successful trips to Home Depot and, well, just about anywhere one might buy something large. Though the cargo space isn't as tall as that of an SUV, it's much longer.
My 528iT offers the efficiency and handling of a BMW sports sedan (before they went soft), with the utility of a large SUV. Guenter and Michelle (more accurately, Michelle and Guenter) have a 3 wagon, which they enjoy. The new 3 is great, but for my non-sports car, I gravitate towards a larger car.
The Panamera hadn't really been on my radar until I drove one a couple weeks ago. In terms of driving dynamics, it easily surpassed the A6, A7, Merc E and BMW 3 and 5, all of which I've driven. But as against the A7, E350 wagon, and even the 3 series wagon and GT, the Panamera comes up short in cargo area.
I was just SO impressed with the Panamera, I felt I had to look at it more closely. (And lest anyone think I'm loaded, rest assured it would be a pre-owned model.)