Thanks for all the comments guys :clapper:
@Gizmo - I have previously had the Style 29's on my 328i individual and personally preferred the M Contours. The 29's seems too small and they are not staggered.
I also feel that the 193's were out of place but the 18s did fill the arches quite nicely though.
After spending the weekend with the car and having the M Contours on the car whilst the M3 wheels were being refurbed, I must admit that on this car the M Contours come in a close 2nd to the M3 wheels.
Perhaps its the darker finish on the M Contours, but they appear smaller on this car.
I have therefore decided to go with the M3 wheels. And a drop in the new year - Moranor has already provided some good options to consider

raise:
... now to sort out a few issues on the car to get it back into shape.