Ok, you're talking about tires without tread ('smooth tires' if there are any). I'm talking about tires with tread.
In your theory, a bike would be the best in winter.
Check with your mechanic.
Drive safe, man.
Re: snow tire
These tires are from my 2000 Sienna. If you take a look at your user guide, you'll find that both 205/70R15 and 215/65R15 fit. 215 is better because it's wider hence more stable.
Four 215/65/15 quality Goodyear Ultra Grip winter tires with rims for sale. Used 2 winters. Fits Toyota Sienna. Asking $300 for quick sale.
Please QQH.