Car Rental in San Francisco, Madrid, Spain

If sharing driving responsibilities, check the policies regarding additional drivers. Some companies charge fees for each extra driver, while others may include it for free under certain conditions.

Familiarize yourself with the fuel policy. A 'Full-to-Full' policy requires returning the vehicle with a full tank, while 'Same-to-Same' requires it to be returned at the same fuel level. Full-to-Full is generally more economical.

Before driving away, examine the rental car's interior for cleanliness and any functional issues. Ensure features like the radio and air conditioning are working properly.

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

Most rental companies prefer credit cards and might have limitations on debit card usage. Always check the accepted payment methods prior to booking.

When looking at insurance, consider options with zero excess coverage, meaning you won’t need to pay a deductible for damages, providing extra peace of mind.

When renting a car, especially after travelling by train, allocate extra time for pickup to account for possible delays. Most rental companies offer a 30-60 minute grace period. Sharing your train number can be helpful, but if you're running late, be sure to contact the rental provider to let them know.

If you're looking for extra comfort or features, ask about upgrade possibilities at the rental desk. Often, there are discounted upgrades available at pickup.