Car Rental in Knightsbridge, London, United Kingdom

If you're looking for more comfort or features, inquire about upgrade options at the rental desk. Sometimes, upgrades are offered at a discounted rate at pickup.

Some rentals have mileage limits, while others provide unlimited options. Read the policies carefully to avoid unexpected charges upon return.

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.

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.

Car rental companies usually require a credit card deposit that is temporarily held. Inquire about the deposit amount and its release after returning the vehicle.

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.

Look up fuel prices in the area where you'll return the vehicle. Refueling at a local station is often cheaper than paying the rental company's rates.

If you're traveling with pets, confirm the rental company's pet policy before booking. Some companies allow pets but may have specific fees or restrictions, so it’s best to clarify in advance.