Just checked http://www.michelin.com
because I had not seen those either.
Michelin Pilot Alpin is not (yet) indicated when you specify the BMW 1M in the winter tires configurator.
However, recently made available winter tire sizes (at least in several countries) which should indeed fit the silver 1M stock 19" OEM 359 M Y-spoke Competition wheels (as well as the black M3 GTS Competition wheels, which are identical except for the color) (using size instead of car brand in the configurator):
- Winter tires:
Michelin Pilot Alpin 245/35R19 93W XL
Michelin Pilot Alpin 265/35R19 98W XL
- Stock 1M tires (Summer):
Michelin Pilot Sport PS2 245/35R19 93ZR(Y) XL
Michelin Pilot Sport PS2 265/35R19 98ZR(Y) XL
- Upgrade for the stock 1M tires (Summer):
Michelin Pilot Super Sport 245/35R19 93W ZR(Y) XL
Michelin Pilot Super Sport 265/35R19 98W ZR(Y) XL
Conclusion: winter tires fitting the 1M stock OEM 19" 359 M Y-spoke Competition wheels:
- Michelin Pilot Alpin (front: 245/35R19 93W XL | rear: 265/35R19 98W XL)
- Pirelli Winter 270 Sottozero Serie II (front: 245/35R19 93W XL | rear: 265/35R19 98W XL)
Hm, silver 19" stock wheels + Michelin Pilot Super Sport tires as Summer setup and black 19" M3 GTS wheels + Michelin Pilot Alpin tires as Winter setup ...who's first.
Winter alternative offered by BMW (personally not my cup of tea): 270M 18" winter set-up (examples: http://www.1addicts.com/forums/showp...0&postcount=93