Yes, Swig cups fit in most car cup holders. The cup’s base is wide enough to sit securely. However, if your car has tiny cup holders or a shallow console, it might not fit as well as you would like.
If your car doesn’t have a built-in cup holder or you don’t want to use one while driving (and probably texting), no worries—there’s an easy solution: put the Swig on your seat next to you. It won’t spill there because of its spout design and sturdy lid!