Avoid extra high cost rental charges abroad and cover the Excess on your Car Hire policy today. Car rental agreements make you liable for the first portion of the repair costs otherwise known as the Excess or Collision Damage Waiver (CDW), which can be up £2,000. Blue Insurance Car Hire Excess policy covers you for this excess charge. Cover also includes Rental Car Key Cover, Personal Possessions Cover and excess charges for damage to the tyres, wheels and undercarriage. However, rentals through any Green Motion Car Rental branches are excluded.