"Grip Control coming soon, which is actually better than 4WD in snow." Wow - a traction control system that magically makes tyres grippier - must be voodoo - or you could be talking out your behind...
I bought a Tesla model 3 last year and did some research on 4wd versus 2wd. 2wd with microsecond control of traction actually gave BETTER traction than most 4wd. Snow tires give MUCH better control than all weather tires with 4wd (the latter get you moving but don't give you directional stability or braking). I live on top of a mountain in the CAtoctins and we get several feet of snow in the winter. Practice proved both conclusions thankfully.
Ian - in the UK (where this website is based), almost all new cars come with summer tyres fitted as standard, and increasingly lower profile ones, even on 'standard' (i.e. non-high performance) cars for styling purposes.
As a result, many of them have very poor traction in relatively minor amounts of snowfall (apart from the North of the UK, we only really get about a week or two of snow a year on average, and its not that heavy/bad either), but work fine for the most part the rest of the year.
What a lot of people over here don't realise is the large difference in traction, handling and stopping power available by changing over to all-season tyres on bog-standard cars in cold (below 7degC), and especially wet and icy weather, compared to summer tyres, never mind in the snow. The thinking now is that, especially as all-season tyres have significantly improved in the last 5 years, they are well worth it for people living in the middle parts of the UK at least, and more rural/remote parts outside of the North.
I live in a flat and thus don't have any space to store a set of tyres (summer/winter) and very few tyre shops provide a facicilty to store them for the months they aren't needed, and those that do charge quite a bit. As such, all season tyres are worth it, especially now that the price premium over summer tyres of equal quality is far lower than it was a few years ago.
It's a different kettle of fish for high performance cars with very low profile tyres, where there's far less availability of all-season tyres, so the summer/winter tyre option maybe be better, especially as it's likely the car owner can afford that and the storage costs (if they don't have the space at home of don't want to store them). Obviously if, like you, people live in the few areas of the UK that does get regular and decent amounts of snow and icy conditions up North, then winter tyres can be essential, though on higher profile tyres from a decent make, all-season tyres (especially those with the three peak symbol) often can do fine if you own a bog standard car and live in more urban areas that are less susceptible to problems caused by snowfall.
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