@Napa Paul queried: "I've got a question for you, Gordon, about your comment "I've run Pearl into the low 30* range without issues." Why?"
Because it's fun! Before I had the Dellortos rebuilt, it always ran better when it was cold and running the heater meant that the cockpit, while still itsy-bitsy, was toasty. Plus, it's always fun seeing the reaction of other people to such a small car when it's out of context (winter). The only thing that really keeps me off the roads is road salt.
So, Why NOT?
I get an extra 3 - 4 months of driving when it's cold!