I have Pirelli M+S tires. Isn't that factory equipment?
For trips to the California mountains, true snow tires (as opposed to M+S, which are really all-purpose) are a pain. You probably never need them. Interestingly, while M+S tires are sometimes consider "three season" tires, these factory Pirellis are labeled "all season". As I understand it, in comparison to M+S tires, "winter" or "true snow" tires have a more aggressive tread pattern and a rubber that retains flexibility at lower temperatures. Some manufacturers seem to say that 7F is the cutoff for M+S tires.
In California, the Highway Patrol has three levels of snow chain requirements"
- Requirement 1 (R-1): Chains are required on all vehicles except passenger vehicles and light-duty trucks under 6,000 pounds gross weight and equipped with snow tires on at least two drive wheels. Chains must be carried by vehicles using snow tires. All vehicles towing trailers must have chains on one drive axle. Trailers with brakes must have chains on at least one axle.
- Requirement 2 (R2): Chains or traction devices are required on all vehicles except four-wheel/all-wheel drive vehicles with snow-tread tires on all four wheels.
NOTE: (Four-wheel/all-wheel drive vehicles must carry traction devices in chain control areas.)
- Requirement 3 (R3): Chains or traction devices are required on all vehicles, no exceptions.
Note that both R-1 and R-2 requirements state that you
must carry "traction control devices" (e.g., chains or ?) even if you don't have to put them on.
The R-1 requirement is interesting for Lucids, because my AGT's GVW is 6285lbs. I don't know what the two-wheel drive Airs will weigh, but unless it is less than 6000lbs you will need to carry chains.
So for R-1 and R-2, technically, you don't have to install chains on a AWD Lucid. That said, in my experience in the California mountains, only folks that have truly aggressive four wheel vehicles don't always install the chains when they encounter a chain control section of highway. The reasons should be obvious: you're driving in the mountains, likely in terrible weather, on roads that are unevenly plowed, with a bunch of other drivers who don't usually drive in snow. I like AWD a lot, but in mountain snow it's a far cry from the security of traction control devices like chains or cables.
I'd love to be able to use cables.