My son is buying a french registered right hand drive van and wants to take it back to the UK. French insurance is astronomical so can he insure it with UK insurance or does he have to have french insurance until he's back in the UK?
The short answer is No. French registered, French insurance. UK registered, UK insurance subject to the fact that if you bring a foreign car (including a UK registered one) and it is your intention to remain in France as a French resident, then you must immediately start the process of French registration and this must be completed within a maximum period of 6 months. Shop around. I found French insurance no more expensive than in the UK.