Will VITTSJÖ Shelf unit, black-brown/glass, 39 3/8x68 7/8 " fit in a Peugeot 308 2022?

The Peugeot 308 gives you a hatchback boot that is short but usefully deep. The opening measures 37¾″ wide by 29⅛″ tall, and the floor runs 30¾″ with the seats up, stretching to 58¼″ once you fold the rear bench, a gain of 27½″. The narrow point of the floor is 32¼″ across, so wide flat loads sit fine, but anything past 30¾″ long needs the seats down. The load lip sits 27½″ off the ground with a 6¾″ drop to the floor, so heavy boxes take a short lift then settle low. It takes suitcases and boxed furniture well, long flat-pack less so. Fold the seats before you load, not halfway through.

VITTSJÖ ships as one long, flat carton, 79¼″ × 15¼″ × 3½″ and 60 lb 12 oz. The length is the awkward part: a rigid flat-pack just under 80 inches that will not bend around a tight boot mouth, and there is glass inside, so the box does not forgive a hard knock. A car that takes it easily is an estate, an SUV, or a hatchback with the rear seats folded flat. In anything smaller, load it diagonally from a folded seat back toward the boot, longest edge leading, and rest it on a blanket. Keep it printed side up so the glass shelves stay flat, and slide it in rather than drop it.