Can you drive any car under your fully comp insurance?

It depends on the specific terms and conditions of your fully comp insurance policy. Some policies may allow you to drive any car under your insurance, while others may only cover you to drive your own car or a specific list of vehicles. It's important to carefully review your policy documents to determine the extent of your coverage. If you are unsure, you can contact your insurance provider directly to confirm whether or not you are covered to drive any car under your fully comp insurance.