FTA:
"If anyone gets an AWD vehicle “for safety” but uses it with all-season tires, they have performed a Consumer Sucka Fail. A front wheel drive vehicle with snow tires would have more grip.
According to this Consumer Reports test (https://www.youtube.com/watch?v=iXjzYbpt9Ow) on snow tires vs. AWD, the tires were by far the most important factor. And only 12% of AWD vehicle owners bothered to put snow tires on their vehicle, meaning 88% of all-wheel-drive vehicle purchases were wasted, because the drivers could have achieved better performance at lower cost in a front-wheeler with snow tires."
You couldn't be more wrong.
The reality of car dependency there means that there are people driving and owning cars who can't really afford to do it properly, nor do they know they need to do it properly (e.g., having a second set of tires for the winter). You can see this evidenced by the rust buckets on the road that look like they are one pothole away from losing part of the vehicle body. Deferred maintenance and investment everywhere and in everything …
Also, you need studs or chains to get traction on ice. The difference between a winter tire and a summer tire is the temperature range where the rubber stays flexible. When the rubber gets hard, it will keep its shape instead of complying with the surface of the road, so it loses traction quicker. Ice is flat, so there's no difference between tire types, and there's nothing to grip on to.
The government has done ongoing research on these subjects and the regulations do get renewed (e.g. some properly rated all-seasons are now allowed)
Beyond the questions of winter weather properties, there are adjacent tradeoffs between the tire types (outside of studded):
1. Fuel economy
2. Noise
3. Degree of particulate pollution emission
I'm sure that the all-season tires probably have some negative tradeoffs in these regards to, which yields a choose the most optimal product for the time of year. All-season tires to me seem like a convenience food for places where the weather can be legitimately bad.
One other difference that is hard to articulate to North American drivers with respect to understanding Scandinavia and roads: there are places where snow and ice will literally not be removed (maybe not even removeable) from the road when plowed (I presume until spring melt). It just becomes a thick ice pack over the course of weeks. I never encountered any roads in my life (including Northern Minnesota) that were this inclement. North American roads tend to be cleared (plowing or melting) to asphalt or pavement.
If tires complying with the standards overlap, then the standards are meaningless. When there's requirements for snow tires, but not for X brand or model of snow tire, than it's not doing any good. That's why it's important to have a snow rating that can apply to tires of any type, and if it meets that rating, regardless of the rating for dry warm weather, than it should be good to go, otherwise not.
All seasons tires are rubbish. Also the "new" ones (re sister comment).
All-season tires have massively improved, but /so have summer and winter tires/. So sure, your all-seasons today may be superior to very old standards for prior generations of tires, but you are still the absolute safest when you have appropriate tires on your vehicle. Tires are fundamentally all that holds your vehicle to the ground.
Also as much as I love AWD, it does basically fuck-all to help in winter conditions. The thing you need to worry about is /stopping/ not necessarily getting going again, and in both cases a FWD car with winter tires is worlds better than any AWD car on all-seasons. I swap to winter tires on my AWD cars when I spend significant time in areas where it snows (e.g. when I lived for several years in Colorado). It doesn't matter how many wheels are used to drive, all vehicles use all 4 wheels to stop, but if you have no traction you are fucked. Anyone telling you otherwise is ill-informed.
Yeah.. no. The difference is night and day.
Put on some Nokian Hakkapeliitta tires and prepare to be amazed. The grip on snow is spectacular.
All the years I lived in snow areas I drove a Miata of all things.. RWD, light, no ABS, no TC, 4" clearance. But with Hakkapeliitta tires I never once had any trouble, while people in their trucks and 4x4s were stuck on the side of the road due to all-season tires. A true snow tire is a whole different level.
> Northern California ... chain controls
The whole California chain thing is brain damage. The proper safe answer to driving in snow is top quality snow tires, not chains. Chains is the worst possible idea. The chain laws are laws created by politicians who live in sunny Sacramento and have never seen snow and have no clue.
A car with Hakkapeliittas (Blizzaks are good too) will outhandle a car with chains 100% of the time.
Chain controls, and really all winter regulations, like snow load factors in buildings and whatnot, are created locally, not by the state. Most politicians are from Southern California, and all the state cares about is air condition efficiency and water usage, as though everyone lives in the desert.
No, this is incorrect. Just try it.
Summer tires are hopeless in freezing temperatures (and are not rated by the manufacturer to be used in such cold), as they become rock hard. As much grip as plastic kids big wheel tires.
Ultimately, what you need the most, is grip. You could have an 8-wheel drive vehicle but if the tires have no grip it will just spin in place.
In the snow by far the biggest advantage comes from true snow tires (not M+S or all season) due to how much grip they'll provide.
A 4x4 is an additional advantage, of course. A 4x4 on snow tires will do better than a 2-wheel drive with snow tires. But a 2-wheel drive on snow tires is infinitely better than a 4x4 on summer tires because if there is no grip, there's no grip.
If you are driving on pure ice then yes, chains or better yet, studs, are the way to go. That is a very rare scenario.
> Chain controls, and really all winter regulations, like snow load factors in buildings and whatnot, are created locally, not by the state.
No, these are state-wide Caltrans rules.
Culture has an impact on what people choose to do. I’ve seen so many Americans with your point of view. It’s maddening. Winter tires save lives!
I’ve shoveled meters of snowfall this year, our roads are just packed down snow, no pavement.