That narrow space can help hold the handles of a lightweight bag, keeping it more stable while driving. This can prevent takeout, groceries, small purses, or loose items from sliding, tipping, or spilling during turns and sudden stops.
The trick works because the divider gives the bag extra support instead of letting it move freely on the seat or floor. It is not meant for heavy items, but it can be helpful for everyday things like snacks, coffee, or small shopping bags.
Not every car has the same cup holder design, but many do include this hidden feature. It is a simple reminder that some of the most useful car details are the ones hiding in plain sight.
