Thanks for all the advice lads.
...still non the wiser so anyone got a coin?
I had made my mind up on the Rb5 until I discovered the 2008 Factory release of the B4 at which point my brain went into meltdown.
Are the B4's still using imperial size fixings? I have all the metric sizes under the sun for my touring car so it may well be down to something as simple astool sizes.
