Prius Touring - 16" or 15" wheels for winter?

I have an 08 Touring grade and put 15" Bridgestone Blizzak WS60's on. Purchased 4 tires and 15" Rial Campo rims from the tirerack. The WS60s were awesome on snow and ice.

Only 2 issues from doing this - 1) Speedo read about 3% fast and 2) Tire pressure monitor light stayed illuminated because I did not get the TPMS sensor installed on the winter set.

I have no regrets and the winter tires were simply awesome, especially on ice.

 

I agree that it is a good idea to obtain winter tires in the 15" size considering price and available choices.

The two tire sizes in question are 185/65-15 vs. 195/55-16. The nominal circumference rating is 76.84" for the 15" size vs. 76.78" for the 16" size. Therefore the difference in speedometer reading is going to be less than 0.1% which is not noticeable or meaningful.
Tire Size Calculator - tire & wheel plus sizing

However, actual tires that you might buy will differ in size from the nominal circumference specs listed above. Further, the speedometer may have some error built in.

 

Do you have pics of your tire/wheel combo? Did your car look "funny" after putting smaller wheels? This is my biggest isse..

 

The car shouldn't look funny with 15" wheels. The Touring is exactly the same dimensions as the "regular" Prius, except for the "spoiler" (which is seriously like an inch difference, I can't even tell).