Cheap Firefly Car Hire Deals at Heathrow Terminals 2 & 3, London

Before your trip, confirm if your rental includes roadside assistance. This can be crucial in case of breakdowns or emergencies during your rental period.

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.

When booking, check if the rental company offers extras such as GPS or child seats. These can enhance your driving experience but may incur additional costs, so it's wise to factor them into your budget.

Some rental agreements come with mileage limits, while others offer unlimited mileage. Make sure to review the mileage policy to avoid unexpected fees.

If you have a specific vehicle in mind, opt for rentals that guarantee your chosen car type. This ensures that you receive the vehicle you expect, rather than being offered an alternative.

Download offline maps or bring a secondary GPS in case the station's signal is weak.

If options at the station are limited, check for other rental agencies nearby that might offer better deals.

Ask about potential extra costs, such as fees for insurance or airport charges, to plan your budget wisely.