what size wheels do you recommend for Cayenne snow tires, 18 or 19 inch? Does it make a difference? paul
Smaller the better....
Tires that are 'skinny', cut through the snow better. Fat wide tires are generally worse in snow and ice conditions.
fwiw: i've had 20" winter tires (275/45/20) for Minnesota winters over the past 3 winters for a Touareg and Cayenne. I'm absolutely amazed at how well a good set of winters perform vs. good all seasons tires. Night and day...
If i could do it again, i would step down to 19" in the winter... for just that wee bit better performance/handling/braking, yet still have a good looking wheel/tire combo.