I use the
pirate bike year round. Rain is more likely to keep me off the bike than snow/cold though. (Thus the electric car's
other nickname: the Electric Umbrella.)
Slippery weather is fun... though most of my riding is on bike paths/trails, not around cars. I'm like a kid in the snow: I love locking the rear wheel and fishtailing around corners.
Worst part is when stuff freezes up and the gears/brake cables stop working, or some ice in the chain makes it skip.
I bike more than I drive... the downside of which is the 12v battery in the Firefly was dead when I wanted to use it a couple of days ago.