Great, thanks everyone for their suggestions! I had originally thought it was a head gasket failure until i learned about those little rubber rings, hell i may even give fixing it a go, any hints/tips? Furthermore, I’d like to learn more about the car - is it just me or is the bonnet release really really stiff, so much so the handle has actually come off a bunch?!
Finally, im hearing a slight whirring noise when revving the engine slightly, it comes and goes and sounds like morse code in terms of the pattern, any ideas? Its not a belt i don’t think