A bit late but hopefully helpful. I find it to be very unstable on snow/ice, and I grew up in Michigan driving in much worse than Colorado typically gets. The caveat is that you buy real winter tiles (x-ice, Blizzak,etc) and it's pretty rock solid.

I agree the bicycle tires are terrible looking. I actually just bought a 2017 today for 22k and the salesmen mentioned one of the mechanics has an i3 and has tricked his out, including bigger rims/tires. I'm going to reach out and do the same now that I own one (had been leasing a 2017).