I've still got the mg for now, took her to work and realised how awesome it is on the motorway, took the starlet out when i got back from work, which was also fun lol. Just found out you can't use no claims discount ovet two cars??? What a load off ....!

You can mirror ncb with some insurers, sky being one.
It might be the front mount cooler causing your overheating problems, consider an uprated radiator jobby it might help, with a big front mount blocking air flow its easy to overheat the water

Yeah i think the raditor that its got could be needing replaced anyways, the coolant is a bit rusty :-0 and was also a little low, I topped it up with a universal anti-freeze. I was planning to get the coolant changed going to get a full service in the next couple weeks. Others have suggested that it could have air pockets and said I can remove them by having the cap open whilst running. Is this true and do I need to have it warmed up in order for this to happen?

Do i need both cars to be insured with sky?