In reply to bennys89:
Have a word with these guys:
https://www.stuartcollins.com/quote.php
OK if you're spending time 50/50 in UK/France but if you're doing a permanent move then you will have to re-register your car and get French insurance.
It's quite easy to re-register, but can cost about £1000 by the time you get the headlights changed, get control technique, carte gris and and European CofC and number plates. Bonus is that after it's done, there's no road tax, MOT every 2 years and insurance is cheaper.