This is whoever drives the car most, not necessarily who owns it. This is worth noting if your teenager drives your car more than you do, for example. If that’s the case, you’ll need to make sure they’re named as the main driver on your policy, or you could be guilty of .
In the UK, the term "main driver" refers to the individual who primarily uses a vehicle for personal or business purposes. It is typically the person who drives the car most frequently and holds the main responsibility for its usage.
The main driver is usually the registered owner or the person named on the insurance policy. As a UK driver, understanding the concept of the main driver is important when purchasing car insurance, as it helps determine the premium and ensures that the policy accurately reflects the primary user of the vehicle.