Any idea what this noise is?

[CitizenKane]

Exactly, you said you weren't in a position to buy a M3 yet so just spend a bit more on this car to tide you over.

Crude but easy way to check the chain. Get a small hook (even the top of a clothes hanger) and open the oil filler cap. Get the hook under the timing chain and try to move it upwards. If there is noticeable slack, you need a new chain.

Thanks mate, I'll give that a go.

[spike]

Shane said he would gladly explain this to your wife,