I want to borrow a car of a friend in the UK on a regular, but only daily basis for traveling. I searched the internet for possible short term insurances. The car is registered in a EU country (Germany) and it is insured already. I want to extend the insurance for all damages caused.
For short term insurance companies I found I need a registration number of the car to apply. The car is not registered here (since only occasionally around).
Does anybody have an idea how I can borrow the car and being insured against self-caused damages? Is there maybe some platform somewhere the guy can register and I borrow over that portal, to circumvent the lack of insurances?