Will KARMSUND Floor mirror, black, 15 3/4x65 3/4 " 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.

One long, thin box: the KARMSUND mirror ships as a single package at 65″ × 16¼″ × 1¼″ and 21 lb. The weight is nothing; the shape is the whole job. A 65″ carton with glass inside cannot bend around a seat gap or ride upright, it wants one flat, straight run, and few cars offer that with the rear seats up. Fold the seats in a wagon, hatchback or SUV and the length usually clears. Feed a top corner through the opening first, lay the box flat on a blanket with the glass side up, and stack nothing on top. The corners are the weak point, so pad both ends before it leaves the store.