Will BRIMNES Cabinet with doors, white, 30 3/4x37 3/8 " fit in a Peugeot 5008 2021?

This trunk lives two lives. With all rows up the 5008 gives you a 13⅜″ shelf, groceries and not much more. Fold the seats and the floor runs 74″ deep, a +60⅝″ swing, behind an opening 44½″ wide × 31½″ tall. The floor stays 45¼″ across at its narrowest, wider than the mouth itself, so any box that clears the opening will sit flat inside. The liftover is 27⅛″ with a ⅜″ drop to the floor, close to flush, so you slide heavy boxes in instead of lowering them. Long flat packs are the easy case; tall cartons still have to duck under that 31½″ opening, so check height first on borderline boxes.

The BRIMNES cabinet arrives as one flat box, 39″ × 16¾″ × 6″, weighing 72 lb 7 oz. The size is friendly; the weight is not. At 39″ long it clears the folded load floor of almost any car, and plenty of boots take it with the seats still up, so this is one of the easier IKEA packages to move by car. What catches you is lifting 72 lb of dense flat-pack over a sill on your own. Slide it on its long edge rather than carrying it flat, bring a second pair of hands for the kerb and the stairs, and protect the corners; chipboard shows every knock at the edges.