Yes, the 16" alloys from the Fit will fit:
Hi all, btw. I am new here and had been researching this very question prior to jumping the gun. It really bugged me that no one had a definitive answer, so I decided to reply to this old thread with some pictures of my 16" Fit alloys on my Insight. Yes, I had to go with 185 55R16's... they are a pain to find in stock. No rubbing as far as I can see.
Pretty, huh?
Amazing what you can find on Ebay.