By now we should all know that Michelins summer-bias all season tire is different. 

Traditionally all season tires start as winter tires, and have a little extra dry and wet performance added into the mix. While this leaves traditional winter-bias all season tires performing excellently in the snow, they give up around 15% dry braking performance when compared to a summer tire, which affects braking for the 200+ days dry running we get in the UK.

The summer-bias Michelin CrossClimate started life as a summer tire, and as such does not give up the dry braking performance traditional all season tires do. Does this mean they don't perform in the snow and ice? We head off to the Swiss Alps to find out.