Well, from what I know 318is didn't come with skirts nor M-tech bumpers, but I guess the original buyer of the car could opt for it.
I know for sure that 320is came with the full M-technic packet (front/rear bumpers, sideskirts, trunk lid spoiler, wide plastic stripes on doors and fenders)
The 320is was only available in europe thought…
P.S. I could post pics of a 320is if you like, it looks awesome
