I do terribly in the cold, as I've said in numerous other threads...I just never seem to warm up, I just get colder as I stay out longer.
FWIW though, I've found that my car runs the best and gets its best fuel economy in the 40-50 degree range. Much colder then that and the car starts to hate me. it squeals on startup (my dad said its the belts reacting to the cold) and is really balky, I have to baby it alot when the weather gets below freezing or colder. Its got over 150000 miles on it (probably more now, my mom's been drivng it while I'm at college)