The cold air also makes the exhaust sound better. I drive with my driver's side window down to hear my exhaust note all the time, but there are times when it's just too damn cold to do so.. so there are obviously limits.
my pajamas are pretty awesome, and really fucking comfortable. I should wear them out more, even when its not appropriate. I don't see why not, because I'm awesome. And I have a giant penis. Yep, that penis.