You have successfully passed the ITV inspection after installing a tow bar on your car in Spain, and the modification is now stamped on your Ficha Técnica. What is the final critical step regarding your car insurance before you can safely tow a trailer?

A)No action is required, as any factory-approved tow bar is automatically covered under standard third-party liability insurance in Spain.
B)You must cancel your current policy and purchase a specialized, separate insurance policy specifically for the tow bar itself.
C)You must notify your insurance company to add the tow bar (bola de remolque) to your policy, as an unregistered modification can void your coverage in an accident.Correct

Why? Even though the ITV has legally approved the installation, you must inform your insurance provider. A tow bar alters the vehicle's structure and increases the risk of causing significant damage to another vehicle in a rear-end collision. Most insurers will add it to your existing policy via an endorsement (anexo/suplemento) for a negligible fee or even for free. If you fail to declare it, the insurer can refuse to cover damages caused by the tow bar or any trailer attached to it.