Renting a car in mainland Europe (e.g., France) and driving it into the UK is generally not permitted by major rental companies like Hertz. Attempting to do so without explicit permission can result in:
- Breach of rental terms.
- Voiding of insurance and waiver products.
- Significant repatriation fees (e.g., €1,980/€2,317) if discovered.
It is strongly advised to rent a vehicle directly within the UK if you plan to drive there. Always check the specific terms and conditions of the rental agreement regarding cross-border travel.