Book Cheap National Car Hire Deals in San Francisco, Madrid, Spain

Before finalizing your booking, check if the rental company offers free cancellation. This can provide peace of mind if your travel plans change unexpectedly.

If you plan to drive off-road, confirm with the rental agency whether it's permitted. Not all vehicles are suited for off-road conditions.

Prior to booking, check for any current promotional offers or discounts. Many rental agencies provide seasonal deals or early booking discounts.

When hiring a car in San Francisco, Madrid, choose a car hire deal with a “Full-to-Full” or “Same-to-Same” fuel policy from suppliers like National. These policies ensure you only pay for the fuel you use, helping you avoid unnecessary costs. While a “Full-to-Empty” policy might seem convenient, it can often be more expensive if you don’t use all the fuel.

Many rental firms prefer credit cards and may not accept debit cards for payment. If you're using a debit card, confirm the company's policies before making a reservation.

Ensure you know whether your rental includes roadside assistance. This can be vital in case of breakdowns or emergencies during your rental period.

Before renting, check if your personal auto insurance extends to rental cars. Many policies and credit cards offer rental coverage, helping you save on insurance costs.

To evade additional charges, return the rental car on schedule. Familiarize yourself with the agreed return time to prevent any surprises.