Comprehensive does not mean any car
Comprehensive describes the level of cover on the vehicle named in the policy. It does not, by itself, give the policyholder permission to drive every other vehicle.
Some policies add a driving-other-cars extension. It is often limited to the policyholder, not named drivers, and commonly gives third-party cover only. Conditions vary and some policies omit it altogether.
Ownership can be decisive
The extension commonly applies only when the other car is not owned by you and has not been hired or leased to you. Once you have bought the car, that condition may no longer be met. Other restrictions can concern age, occupation, emergencies, the other vehicle’s insurance and where it is registered.
Only the actual certificate and policy wording can answer the question for your policy. If unclear, ask the insurer and keep its answer.
Arrange cover specifically for the new car
You could transfer the existing policy, begin a new annual policy, accept suitable dealer cover, or consider a short-term policy. Confirm the registration and exact start time.
Get a short-term quote →The quote journey is run by Ramasis Limited. Terms and eligibility apply. Prudent Plus Limited may receive commission on a sale without increasing your premium.
Think about the level of protection
Even where driving-other-cars cover applies, third-party-only protection may not pay for damage to the car you are driving. That could be a considerable exposure immediately after paying for it.
Compare the cover, excess and exclusions, not just whether a document technically permits the journey.