I still see plenty of daily driven Foxes up here in the northeast. I pass by 2 on my commute to work. One guy was driving it right into the heart of winter as well.
I personally couldn't do it. I've gotten spoiled by the creature comforts of new daily driver's that are quite fast themselves, so I like when i can pop into the seat of my Fox every 7 months and take it for a 1 mile drive.
I manage to get 16-18 city/back roads and 20-22 interstate. This is from an engine that is stock and tired. Gas for me is usually $25-$35 a week (about 160 miles). On average I fill up about 7-10 gallons. The low fuel light comes on when there is still 5 gallons in the tank
Daily here. 50 miles per day, 5 days a week. 19 mpg. $60 to fill it with premium.
mabe next fill up, add a bottle of chevron fuel system cleaner and fill up with chevron gas, then switch back to 87