Let me help, @Anonymous.
Yes, you can include car insurance in Schedule C. You'll just have to categorize these transactions as Car and Truck.
Please see the sample screenshot below.
You can refer to this article for more details: Schedule C: Car and truck.
If you need more information about organizing your expenses, you can check out this helpful article: Categories in QuickBooks Self-Employed.
That should do it. Feel free to let me know if you have other questions about Schedule C categories. I'll be here to help.