Will MARKUS Office chair, Vissle dark grey, Medium fit in a Volvo XC60 2022?

The XC60 gives you a wide, flat, square boot rather than a deep cave. The opening is 112 cm wide and 74 cm tall, and the floor runs 96 cm with the rear seats up. Fold them and it nearly doubles to 178 cm, a gain of 82 cm, so the seats-up length is the real limit on anything long. The floor stays a wide 111 cm across at its narrowest, which suits flat boxes and multi-package loads. The lip is 72 cm off the ground but level with the floor inside, so you slide loads in rather than lift them over a step. For long flat-packs, fold the bench first and load down the middle.

MARKUS ships as a single box of 98 cm × 59 cm × 23 cm: short by flat-pack standards but deep, closer to a stout crate than the usual thin slab. At 22.36 kg it is a one-person carry if you keep it close to your body, though the depth makes it awkward to hug through a doorway. Nearly any car takes a box like this with one rear seat folded, and bigger boots manage it without folding anything, which makes this one of the simpler IKEA collections you will do. Slide it in flat on its 59 cm side rather than upright, and load it last: a 23 cm thick box blocks more of the aperture than you expect.