On bookings made via top-car-hire.com a second or additional driver is free of charge, and must meet the same requirements as the main driver. It is essential the details of the additional driver are added when the contract is made. If you wish to add further drivers, you can do so at the time of booking, or at the desk of one of our offices on the day you collect the vehicle. The charge for each additional driver is €9 per day, up to a maximum charge of €90 per vehicle hire.   A maximum of 4 drivers is allowed for one vehicle. Apart from the main driver and the first additional driver (which is free), you may add up to 2 further drivers on payment of the appropriate charge.