Often times if you use your credit card to rent a car, the credit card company will offer complimentary insurance. (4autoinsurancequote.com)
To top it off you also get complimentary insurance covers. (finder.com)
Some of the common complimentary insurances you can find with such cards include lost or stolen card reporting, auto rental collision damage waiver, zero liability, roadside dispatch, emergency card replacement and emergency cash disbursement. (finder.com)