Perhaps unsurprisingly, the only downside to driving a powerful and semi-autonomous Tesla through a snowstorm is that many of the sensors required for Autopilot froze and were temporarily unavailable -- at a moment when you really wish your self-driving car would take care of the hard part of driving.
Unless, of course, you've got the right tires. Even though they take up space in the garage for eight months out of the year and you have to remember to install them, winter tires are a very serious boon in real-world driving. No matter what car you drive, and no matter if it's all, rear, or front wheel drive, once you use them, you'll never go back. It's like finally being clued in to a trade secret.
They'll not only make winter driving easier, they could potentially save your life.