As the title really, I have 7 years NCB built up with two previous cars and now obviously the Impreza, I have purchased a second car as a run around, do NCB work between the cars you have, for example for the new car can I say I have 7 years NCB and then also for the Subaru when it is time to renew?

Don't tell me you can only use it on one car

 

you can only use it on 1 car,
but with policies like admiral multi-car they will give you a discount for both on 1 policy.

some insurers will mirror the ncb onto your second and give you a lower price compared to having to ncb but i don't think the ncb accumalates..