my exhusband has just died and he bought a car for our son which was registered in his dads name and his dad has insured it in his name and my son as a named driver, what will happen now he has died will we have to register the car in his sons name and what about the insurance side of it.
The death of your ex-husband has unfortunately invalidated the policy and if your son is currently driving the car he is uninsured which doesn't bear thinking about if he has an accident. Tell him not to drive the car in any circumstances until he has reinsured it. As dzug has mentioned, there may be a possibility of getting a refund on the existing insurance premium, but this will probably take a while to come through and the insurance company may make an administration charge which swallows up part of the refund.
Forgot to mention that your son will also need to contact the DVLA in Swansea as there is a change of ownership for the vehicle. And if your ex had taken out a membership of the AA or any road rescue organisation for your son in his own name, rather than you son's, you'll have to contact them too.
Wish people would not comment on things that they do not know about. Under the Road Traffic Act, your son will still be insured by the policy despite the unfortunate death of your hysband - this is only a temporary measure, and should be addressed as soon as possible by changing the name of the policy holder. It is an offence not to inform the DVLA of a change of the registered keeper. This must be the usual driver of the vehicle.
Regards,
Steve