I still havnt got to the bottom of the strange noise I've come across when starting the car from cold but now I've discovered another strange noise.
It happens when the car is under load. When I'm travelling in 5th gear and have to slow down to around 25-30 mph and have to accelerate off again, there is kind of an air leaking noise as though there may well be a tiny hope in the exhaust of something similar, it's not overly loud but you can certainly here it with the windows down.
Is this normal or is something f**ked ?