How much Ikea can you fit in a Jag?

I rented a car yesterday to make the trip up to Seattle for an Ikea run. I know, not a good idea on a Saturday--the punters were out in full force for the Swedish meatballs, but it's a rare weekend off and I need more bookshelves (too much Powell's). I had reserved a standard mid-size, in hopes of getting something with ok gas mileage and folding back seats. They had one on the lot, only the previous renter had failed to put the keys in the night drop box. So I was bumped up, free of charge, to...get this, a Jag! ha ha! As it turns out, you CAN fit a heck of alot in the back of a Jag. Which is a good thing, because I found much more than I had planned on getting, of course. Now, where's my allen wrench? p.s. A note on the car itself; I'm never very impressed when a high-end version of anything is recreated in a lower-end version. When you start at the top and cheap out, the results usually disappoint (as opposed to starting with little and seeing how much you can create, which I greatly admire--a la Ikea now that I think of it). The X-type Jag is no exception--aside from the pretty front end (that you can't see when parking!), it's a bummer of a design. The interior is anything but intuitive--I had to refer to the manual THREE times during the trip to locate and understand controls (cruise control, the gas cap release, the back seat fold down mechanism). Despite a dozen adjustment levers, the seat design also left my behind and back aching--for long trips, lack of lumbar support is a serious flaw that no amount of leather can cure. And on the road? Speedy, but slushy. What good is pep if you can't control it? The steering wheel behaved like an pretty accessory, not a tool. On curves at highway speeds, it felt like the entire chassis was sliding out from under me. Not good.