"Car Tax isn't a tax on the roads - nor does it pay for them any more than any other tax"
Can you legally drive a car on a private road without "Car Tax".
Can you legally drive a car on a public road without one "Car Tax"
Can you own a car for use off road without declaring you will never use it on a public road.
Of course the DVLA never refer to it as car tax...no siree
"Tax your vehicle"
"DVLA vehicle tax service"
"Check if a vehicle is taxed"
"Go to a Post Office that deals with vehicle tax."
"the payment for your vehicle tax"
"Register that your vehicle is off the road, for example you’re keeping it in a garage. You don’t need to tax your vehicle."