What happens if I have not received a Green Card?

If you are not carrying a Green Card when it is required, then you will not be able to drive legally in any EU member state. If you do attempt to drive in the EU without holding a Green Card, you may be accused of driving without insurance and could be subject to a fine, having your vehicle seized or prosecution.  

The only other legal option available would be to purchase insurance locally when you arrive in the country (often known as ‘frontier insurance’). However, such insurance cover may not be widely available and may be more expensive than UK-issued policies.