For those interested, dropping from 225/50R18 to 215/65R16 for winter works. Very close match in overall wheel/ tire height - moves from 26.9 inches to 27. 0.4 % increase. At speedometer showing 60, will actually be at 60.2 mph. VW dealer told me Taos could only drop to 17” and tried to sell me a $1,900 package. This made no sense as VW Canada site shows a 16” wheel option. Tire Rack also shows the 16”, although I wasn’t able to find any Canadian site yet carrying a Taos specific wheel. Research suggested the 2017 Tiguan specs were the same so I gambled on an aftermarket rim with the tiguan size tire of 216/65R16. I made the switch today and completed a 150km test run. All good and ready for the snow.