Agree to the other guy next to me. Light cars are no bad in snow. Just wear winter tires. No all season crap.

And actually lighter cars sometimes are even better in the snow. They usually have thinner tires as for example a heavy suv. More pressure on thinner area. More space for snow and walter to flee towards.

Also because of the heavy weight of suvs and such such heavy cars are more likely to slidder. Just imagine a wet floor in a shop. Now imagine yourself as a kid sliding over it and how far you would go. Now imagine the same as an full grown adult - but with the same speed. You will go further. Wayy further.

Also if you have suuuper much snow under your tires - lets say you slided and went off the road into a field that has tons of snow.

Your small car wont weigh down in the snow that much. Making it not sink that much. Wich makes the chance higher that you will be able to recover/drive back to the road by yourself higher.

All around lighter car? Better for winter.