Both driver and car need to be covered, even if that is by sole virtue of the driver's policy.
That says what I have said all along, there is still no mention that the car has to be insured in it's own right (ie, a policy exists that is tied to that particular car).
As I suggested ...... what about a company's 'pool car' available for use by anyone?
I used to have to manage the car "pool" in a previous existance. What you will find is that all drivers details (ages, convictions, etc) of the people who can drive the car (i.e. employees) are logged with the insurance company under a Company Policy at the time of renewal.
Any changes to circumstances (e.g. more points on an employees licence) must be advised to the insurance company during the life of the policy.
We got caught out because one employee had a crash and didn't advise us that he had collected an extra 6 points on his licence using his own car which we obviously hadn't been able to imform the insurance company about as we didn't know.
Technically the insurance company could have refused to cover us but as these were the first 6 points he had we got away with it.