I never knew

[Z4C_er]

...And sorry if I'm late to the game here, but I just worked out why the front of the non-Ms look a little more different than the obvious differences would suggest. It seems the front frame around the grille is presented forward on the Ms, whilst they are pushed back on the non-Ms, making the grille seem more 'flush' 'with the surrounding frame.

 

[Mr Tidy]

I hadn't really noticed that, although it was only earlier this month that I noticed the cover for the towing eye is completely different! :lol:

 

[buzyg]

Oh the fun of those little details.

 

[Smartbear]

That si has non original grills though? :?
Rob

 

[Mr Tidy]

I think they both have non OE grilles!

Si ones are chrome surround with grey slats and I think M ones are chrome with black slats.

 

[Z4C_er]

I think they both have non OE grilles!

Si ones are chrome surround with grey slats and I think M ones are chrome with black slats.

Yes, no doubt, but its the recessing of the grilles that is different.