Elephant.co.uk does allow policyholders to add additional drivers to their insurance policy. This can be a great way to ensure that multiple individuals can legally drive the insured vehicle. To add an additional driver, the policyholder generally needs to provide some personal information about the new driver, including their full name, date of birth, and driving history. It is important to note that adding an additional driver may affect the premium of the policy. The premium might increase or decrease based on the new driver's experience and claims history. Therefore, it is wise to review how the addition will impact the overall cost of the policy. For the most accurate and up-to-date information, it may be beneficial to refer to the current web page or policy documents available on their site.