Interesting that most folks look at going to 19" or 20"'s while I am hoping that 17"'s will fit for mounting my X-Ice tires (Discount Tire does show this) I know the styling trend is for the biggest wheel possible. Problem is, for me, is the increased weight of the larger wheels and the harsher ride. C&D did a pretty good comparison going all the way from 15's to 19's on the same car
https://www.caranddriver.com/features/e ... res-tested
You would expect acceleration and economy to improve with the smaller wheels, the surprise was the handling was not improved going from 18's to 19's. In fact the 16's were just a bit less capably than the 18's on the skidpad. On my wife's Bolt going to 15's (not possible I know) would give the car about 25 miles more range(like adding 6 kWh to the battery)
I would love to hear if anyone does go with 20's on the Clarity and results on the ride, noise and range.
Formula 1 had an experiment a few years ago going from 13" to 18" wheels. They looked great but the lap times were massively slower and every driver hated the 'feel'.
Getting off my soapbox now, I have had many conversations around the office about the price of style over substance when it comes to car wheels.