Getting a car insurance quote does not normally provide cover, so you should not drive until you have accepted a policy and the insurer has confirmed its start date and time. Check your policy documents or certificate of motor insurance, as cover may depend on completing payment and providing accurate information. If you are changing insurer, your existing policy may continue until its stated cancellation or expiry date, but do not assume this without checking. Contact the insurer or an FCA-authorised broker if anything about the start of cover is unclear.