Luggage, skiing equipment, groceries, laminated flooring.....(I cant remember all the reasons). I have only traveled 10,000km so far and have had to move the rear seats forward or lay them down more times than I can remember. The back is just not large enough. My previous Kia Cee'd SW had a ton more room. So now I have purchased a roof box for when we travel anywhere or I wont have the room to have passengers. 4 people plus luggage for a week in the mountains does not fit without the roof box.