I'm thinking of picking up a folder for a few reasons. While weighing my options, I'm considering winter performance.

Not talking about carrying it to the subway sort of winter performance, but, riding through Chicago slop 5-7 days/week. [Reason I will need to to fold is to toss it into the trunk of a car a few times a week.]

How do 20" wheels manage it? Are there any models particularly well suited for this sort of punishment?

What are your experiences?