You can always defer the start date of your GAP insurance.
It is important as some Motor Insurance companies offer a new for old style or 100% protection form of cover within the first 6, 12, 18 or 24 months of your new vehicle’s lifetime.
This used to be common practice. However, most insurance companies are now moving away from this option. So, please check with your own insurance company before buying a GAP policy.
Also note that your Motor insurer might apply a deductible in case of total loss. It might thus still be interesting for you not to defer the start date as the Qover GAP Insurance will cover the financial shortfall related to this deductible.