I think you have the best colour combo that the e46 came in there Nick, lovely car!
That yellow one is unlike any M3 I have seen before!!!!![]()

2003 - 2010 E46 M3 CSL Silver Grey
You must have really liked the CSL to keep it that long!
But after 7 years it was time for a change. Shame the V8 doesn't have that style induction kit on it.The e30 in the OP is stunning.
One question though: is it worth putting up with lhd for the benefits of being a special edition?