You can see how absurdly wide everything looks on the 1M. That front fender is outrageous, and looks so good IRL too.
I think the smaller size of the 1 is what makes the fenders stand out so much.
The thing is, when I was deciding on an M3 I wrote off the E92 because of a specific design factor that I didn't like with it. The E92 didn't seem proportional in that the car (from a profile) looked like it was cut up in 1/4 (the front), 1/3 (the HUGE door), and 2/3 for the rear..
Where when you look at an E90 sedan, everything looks cut up properly. Front, Door, Door, Rear all in 1/4's.
The 1M looks PERFECT as a coupe, especially with the widebody where everything is cut up perfectly into 1/3's.
At least that's how I see it..