I see Volvo wagons a lot around here. And someone who scoots down my street every afternoon (I guess to get their kids from the near-by school) has one of those huge wagons with the wood on the sides. It doesn't look really old.....but I can't think of what make/model it might be. It's definitely something from Detroit, though.
I test-drove the "Jag Wag" and considered it for a little bit, but settled for the sedan. It had a nice retractable cover that completely covered the cargo area & hid the contents.
DH has fond memories of rolling around in the back of the family station wagon with his younger brothers & sisters. My family always had staid European cars that didn't afford such shenanigans.