4 questions you need to have answered to reducing your car rental Costs

* Check out line: Yes, it is still hire companies in the phone business too. They may have a cancellation or too many cars in one place, and give special treatment to measure the excess stock, rather than having to transport the car to another store.

* Taxes / fees / charges: Many local authorities and airport rate car hire companies to access, use of facilities etc. Make sure these are included in your quote.

* Frequent Flyer Points surcharge: Many car rental companies now add a surcharge to offset the costs of issuing frequent flyer points. Make sure these are included in your quote.

* Insurance: The cost of insurance can vary greatly waivers. Car rental agencies earn commission selling this add-ins, which can double their daily rate. Find out if your car insurance covers rental cars as well. Some of the major credit card if you cover the cost of the rental charge to your card. Find out what you already have coverage in advance.