Check your antifreeze !!!!!!!!!!
Just had one of those weird feelings that my freshly bought donor car doesn't have enough antifreeze for this cold snap. So I have just scrambled under the mx5 in my dressing gown and slippers draining it to be sure. If in doubt, pull the bottom hose off the radiator ! I would rather look a dick in my dressing gown freezing my ass off than cough up for a new head etc.
I don't mean to tell anyone to suck eggs, but I have been so overwhelmed buying and planning bits that checking the anti freeze level slipped my mind.
Happy Hunting ! Lol