Um...this is true only if the skinny tires are pressurized more. To first order, the weight of the car and the tire pressure together determine the area(s) of the contact patch(es). What's different between narrow and wide tires is the aspect ratio of the contact patch. HPHEverybody knows that skinny tires have better traction than wide tires on ice/snow because you get more weight per square inch with those.
TireRack often publishes their results including videos with portions of the testing. The most recent winter tire test is here (controlled conditions on an ice rink):I agree but how does TireRack tests winter tires traction? On an ice rink inside a building? How do you know that is, what they do? Also, haven't seen any "skinny" tires being offered by them.
I was referring to the "skinny tires" on Saab cars in the late 50s and 60s. People here were laughing at them but Saab kept winning all those races in Europe precisely because of the tires, that they had. They don't sell those anymore nor they are manufactured. Personally, I would get any tire that you can still put studs into them ... but I am afraid not that many States allow studs in their tires - if at all. I hate salt being put on roadways. In Scandinavia it's all studded tires (for most parts anyway...). Preople change rims with mounted tires each and every season, pretty standard in those woods.TireRack often publishes their results including videos with portions of the testing. The most recent winter tire test is here (controlled conditions on an ice rink):
Testing the Newest Studless Ice & Snow Winter Tires
Also, I am running slightly narrower tires than stock (215/70/16) that I purchased from TireRack. Not that I have proof that 1cm of section width (not tread width) is going to make a noticeable difference, but the physics makes sense and the tires and extra set of rims were cheaper anyways. What would you define as a "skinny tire" that would roughly suit the default Outback tire diameter that someone sells (or manufactures, even)?