retaining my NCB but dont want to buy a car, how?

[vrooom]

I want to keep my 7 years NCB, but i dont really want to buy a car because I cant afford to run two cars.

Insurance is very high for me, because nextdoor had her car stolen, pegouets 307 of all cars!!.

So how i can keep my NCB without buying a car?

[vrooom]

Other car, belong to my wife, she drives the car daily.