These are the tires on it:
Lots of meat, not sure what age they are, but at least 5 years. Probably more. The treads themselves are still easily squishable by hand. They're not hard as hockey pucks. I store them in bags in the shed in the summer.
That said, I have driven the Firefly with ancient and terribly slippery "all-season" tires in the snow, and it was definitely not as tail-happy as this Metro. I'm still holding on to the idea the difference is the weight in the rear. I would confirm today, but that would require me to scrape a layer of ice off the windows from freezing rain.
