It sports a pair of rear seats, but the 2011 Jaguar XK and XKR are for all intents and purposes, two-seaters.
In front, the XK and XKR have more foot and leg room than sportscar shoppers may expect. It's roomier than many of its high-rolling competitors. There's more headroom than in the previous XK, and long seat travel (plus an adjustable-length bottom seat cushion) almost guarantees that front passengers will find the foot space they need.
In an emergency, you might be able to squeeze an adult across the back seats, but there's simply not enough room back there to promise any leg or shoulder room to extra people. The rear seats are barely large enough to carry a roll-aboard suitcase, though you'd never want to scuff the leather that way, and they're narrow--even more so in XK and XKR convertibles.
The trunk is a meager 10 cubic feet in coupes, and it downsizes to less than 8 cubic feet in convertibles when the top is down. It's hardly enough room for two soft-sided bags. Blame the XK's high cargo floor and low-slung glass and decklid, but you'll have to leave the hard suitcases at home..
While you're soothing those fashion wounds, soak up some of the beautiful details and careful construction in the cabin. The XK's glossy, deeply grained wood is gorgeous; so are the stitching in the leather and the plush carpeting. You could spend twice as much on some Italian sports cars and get an interior with more pedestrian, poorly fitted trim.