Can I operate any car with SR22 insurance with permission?
Under most state and with most insurance company guidelines, yes, you can drive any car with permission as long as no exclusion applies even with an SR22.
But, if you have a non-owners SR22 then coverage is limited to your personal operation of a car not owned by you or any family member in the household.
You can shop around online for a quote on SR22 financial responsibility certificate.
For you to be able to obtain the general price for an SR22 financial responsibility certificate you need to get a quote. An SR22 generally costs an additional $15-$30 filing fee above and beyond your auto insurance premium rate.