What Is the Weird Gap Between Car Cup Holders For?

At first glance, the small slot or divider seems almost useless. Some people assumed it was simply part of the design or an extra space accidentally left by manufacturers. But according to automotive experts and longtime drivers, the gap actually serves several practical functions.

One of the most common uses is for storing small everyday items such as smartphones, parking cards, loose change, receipts, or keys. The slim opening helps keep objects upright and prevents them from sliding around while driving.